In a keynote presentation today at WWDC, Steve Jobs officially unveiled the iPhone 4. It's powered by an A4 chip, has a glass front and back, and has stainless steel around the edges, which turns out to be part of the antenna system. The new iPhone uses what Jobs called a "Retina display," running at 960x640, or 326 ppi. The battery is also bigger, with a corresponding increase in battery life. The iPhone 4 supports 802.11n, has two mics for noise cancellation, and a three-axis gyroscope, which allows rotation and precision that accelerometers can't match. The iPhone 4's camera is using a 5-megapixel backside illuminated sensor, which Jobs said does better at low-light photography. It also records 720p video at 30 frames per second, with tap-to-focus. In addition to this, they've created an iMovie app, which allows users to easily edit videos on their phone. Several live blogs of the event, with pictures, are available. The device ships in the US on June 24. Apple's product page has been updated with specs and a video. Read on for more details.
Update: 06/07 18:34 GMT by S : Steve's "One More Thing" this time around: FaceTime, live video chat from one iPhone 4 to another. It is Wi-Fi only at the moment, but they're working with carriers to expand that in the future.

David Gerard writes "Microsoft tried to make Vista secure with User Access Control (UAC). They relaxed it a bit in Windows 7 because it was such a pain in the backside. Unfortunately, one way they did this (the third way so far found around UAC in Windows 7) was to give certain Microsoft files the power to just ... bypass UAC. Even more unfortunately, one of the DLLs they whitelisted was RUNDLL32.EXE. The exploit is simply to copy (or inject) part of its own code into the memory of another running process and then telling that target process to run the code, using standard, non-privileged APIs such as WriteProcessMemory and CreateRemoteThread. Ars Technica writes up the issue, proclaiming Windows 7 UAC 'a broken mess; mend it or end it.'"

Staska writes "A new Apple patent filing shows new directions for Apple's touch interface design. For smaller devices like iPod Nano, touchscreen interface may not be feasible — the screen is just too small for touch operation. According to the patent, Apple can still make full screen iPods and put a touch panel on the backside of the device with transparent controls on the front screen. In addition to iPod, patent filing also describes controls for the phone. ZDNet even thinks that this patent can hint about future touch interfaces for all Apple products."

netbuzz writes "Security expert Bruce Schneier suggests this morning that 'there might not be a solution' to our post-9/11 penchant for making domestic anti-terrorism decisions based on the basic human desire to cover one's backside. He might be right. But shouldn't we at least try to figure out a better way? For example, wouldn't 'Commonsense Homeland Security' be a winning political banner, not a risky one? "

Ant writes "CNET News.com reports that photocopier supplier Canon is warning customers to take better care of their office equipment during the Christmas period. It claims that the festive season traditionally leads to a 25 percent hike in service calls due to incidents such as the classic backside copying prank. Such a stunt, a mainstay of the office party, often results in cracked glass on the copier, with 32 percent of Canon technicians claiming to have been called out to fix glass plates during the Christmas period after attempts to copy body parts went wrong..."

Epoch of Entropy writes "Electronics Cooling has this article : "A Stanford research team is using MEMS technology to explore the lower bound volume for the heat sink. The technology combines two-phase convection in micromachined silicon heat sinks (microchannels) with a novel electroosmotic pump to achieve minimal heat sink volume at the chip backside. ...features a novel and compact electroosmotic pump, forced two-phase convection in the heat sink, and a remote heat rejecter." This translates into: We've figured out a way to put a water cooling system right on the CPU."

This set of interview responses from Linux hacker Alan Cox is overtly political, in line with the questions we asked him on May 6th. Alan doesn't just talk about problems here but proposes sensible solutions for them. Very nice. Thanks, Alan.

Frequent readers of Slashdot know that I'm an MP3 junkie. Hell, even casual readers probably know that at this point. This week I review another MP3 player, Slim Device's small wonder, SliMP3. And this $269 is really worth a good look.

bubblegoose writes: "There is a large radiation storm in progress caused by a solar flare on the backside of the Sun. Here's a story from Spaceweather. It has a pretty cool effect on radio signals. I was picking up a 6000 Watt North Carolina FM station from near Philly." Bubblegoose also brings you this link to dxing.com, a site all about listening in when freak atmospheric conditions create unusual RF propagation patterns.

JimRay writes: "A company called powerlogix has announced that they are offering a G-3 upgrade for those fruity iMacs. For a mere US$500, you can have an iMac running at 500mhz with 1mb of backside cache. Throw linuxPPC on that thing and you're ready to rock and roll. The press release is here and the specs are here."

So we're here, we're intact, and we've got our tickets to see Star Wars tonight. With the important business out of the way, I can finally give my first report from LinuxExpo- brace yourself for my quick summary.

AMD has released new details about the the K7. It will try to decode 3 x86 instructions per cycle (usually there are limits such as the number of bytes each of the three instructions can take). It will use dynamically scheduled speculative and out of order execution in each of its 3 integer pipes and each of its 3 MMX pipes. Every MMX instruction will have a 1 cycle throughput, although ensuring no stalls due to latency will be left up to the programmer. It'll have an even bigger Branch Prediction Table (2048 entries) nad a 12 entry return stack. It will use two 64Kb L1 caches (Instruction and Data split), each 2-way Set Associative, and two multi-level TLBs (24/256-Entries for Instructions, and 32/256-Entries for Data). As previously known the L2 cache will be backside, but will support sizes of 512Kb to 8Mb, and the 64bit system bus will run at 200Mhz. As with the K5 and K6, rare x86 instructions are left to the equivalent of microcode, while common x86 instructions decode to a few "Ops". A nice picture of the whole architecture is here, and yes it will do SMP. Thanks to six.