DaveyJJ sends news of yet another rejection of an iPhone app by Apple, with perhaps a chilling twist for potential developers of productivity or utility apps. John Gruber of Daring Fireball writes: "Let's be clear: forbidding 'duplication of functionality' is forbidding competition. The point of competition is to do the same thing, but better." Paul Kafasis (co-founder of Rogue Amoeba Software) makes the point that this action by Apple will scare talented developers away from the iPhone platform. And Dave Weiner argues that the iPhone isn't a "platform" at all: "The idea that it's a platform should mean no individual or company has the power to turn you off."

An anonymous reader points out news that the music and movie studios are attempting to develop a new type of DRM that would allow customers more flexibility in playing content on multiple devices. The Digital Entertainment Content Ecosystem (DECE) would establish a list of devices in your personal "domain" (unrelated to web domains), and minimizes or removes restrictions within that domain. TechCrunch summarizes DECE and notes that many of the big corporations have decided to support it. "The ecosystem envisioned by Singer et al revolves around a common set of formats, interfaces and other standards. Devices built to the DECE specifications would be able to play any DECE-branded content and work with any DECE-certified service. The goal is to create for downloads the same kind of interoperability that's been true for physical products, such as CDs and DVDs. Where it gets really interesting, though, is the group's stated intention to make digital files as flexible and permissive as CDs, at least within the confines of someone's personal domain. Once you've acquired a file, you could play it on any of your devices -- if it couldn't be passed directly from one DECE-ready device to another, you'd be allowed to download additional copies. And when you're away from home, you could stream the file to any device with a DECE-compatible Web browser."

Since we covered people who wanted out of Slashdot last week, I thought we'd look at some people who wanted back in. These users found that living without Slashdot was a lot harder than they thought. Maybe you've just been married and are finding out your wife is less interesting than Slashdot or maybe you were bad and want to make amends. These people found out it's hard to make it without your favorite website. Keep reading to find out what they'll do to get back.

MacRonin recommends a press release over at the EFF on their recent court victory affirming that cell phone location data is protected by the Fourth Amendment. Here is the decision (PDF). "In an unprecedented victory for cell phone privacy, a federal court has affirmed that cell phone location information stored by a mobile phone provider is protected by the Fourth Amendment and that the government must obtain a warrant based on probable cause before seizing such records. EFF has successfully argued before other courts that the government needs a warrant before it can track a cell phones location in real-time. However, this is the first known case where a court has found that the government must also obtain a warrant when obtaining stored records about a cell phones location from the mobile phone provider."

Virtual_Raider sends in an Australian news story that begins "Terrorist training videos will be banned from appearing on YouTube, under revised new guidelines being implemented by the popular video-sharing site. The Google-owned portal will ban footage that advertises terrorism or extremist causes and supporters of the change hope it will blunt al-Qaeda's strong media online campaign. The move comes after pressure... from Connecticut Senator Joseph Lieberman... [T]he new YouTube guidelines includes bans on videos that incite others to commit violent acts, videos on how to make bombs, and footage of sniper attacks."

CWmike writes "Mozilla will respond to Google's Chrome and Microsoft's IE8 with its own private-browsing, or 'porn' mode in Firefox, according to notes posted on its Web site, and is on track to deliver one in 3.1, the version that will likely go beta next month."

finisterre writes "Diodes can be made to 'swim' through salt water by hitting them with an alternating electric field. The applied field induces a current that sets up a field between the diode's electrical contacts and creates a propulsive force. The abstract of the paper in Nature Materials is freely available. New Scientist has videos of the swimming diodes in action."

Stevecrox asks: "I'm in my final year of university and have a working knowledge of C/C++, Visual Basic, VHDL and a variety of Assembler languages, however chatting to a friend on his placement year I've been told that C# is what employers are really looking for. What book would you recommend to someone looking to learn C# with my experience?"

schweini writes "Space.com is reporting that the Mars Express probe's MARSIS (Mars Advanced Radar for Subsurface and Ionospheric Sounding) experiment has detected and measured an enormous amount of water ice near Mars' south pole, which would be sufficient to submerge the whole planet's surface underneath approximately 10m of water on average."