ARM has two general series of processors, the A series, or application processors, and the M series, or microcontrollers. Microcontrollers (such as the STM32F4 in the Armstrap boards) are designed for low-power embedded device use, you *might* run a specialized RTOS on one, but usually it's just your code, running bare-metal. An application processor, such as what you have in your smartphone or in the Pi, is a more general purpose computing core, running faster, taking more power, and using a full OS for resource management and process scheduling. Also, generally, microcontrollers have their own built-in RAM and Flash, while application processors use external RAM and storage (the Pi looks like the RAM and CPU are one, but in reality they're two separate dies, stacked up within the same package, while micros have everything on the same die).
ST makes several ARM M4F based dev/eval boards with built-in JTAG and a few additional chips thrown in to play with (I think accelerometers and MEMS microphones are common). They cost around $15-$20... go to http://www.st.com/web/catalog/... and check the box for STM32F4 under Supported Devices.
So, with what I suspect is the benefit of manufacturer loss-leader subsidies on the Discovery boards, why would I spend $40-$60 more on a dev board?
OSHW has a bit of a difficulty associated with it, and that's the tools used to view/edit the designs. Many proprietary PCB CAD packages are offered in free-as-in-beer versions for boards up to a certain size or pin count, but then you're locked into that package. If you want to take that design and expand it beyond those constraints then you're stuck buying into the next step up of the software, or you have to fully re-design (schematic capture and layout) in another tool. Fortunately KiCAD (http://www.kicad-pcb.org/) seems to be picking up a bit of steam, but for those already using other tools, unless they're deep believers in the full open toolchain philosophy, what incentive do they have to switch packages (and re-implement their existing designs in that new package)?
I just bought a Samsung Galaxy S5 with 16GB of onboard flash. Fully half of it is consumed by Samsung and Verizon crapware that I can't delete.
I was actually looking at several of these boards recently, trying to find all the multi-core options at/below about $100. I put together a Google Docs spreadsheet comparing various specs (#/type/speed of cores, RAM, Flash, network, SATA, USB, RTC), I've got 18 on the list so far. Looks like I have a few more to add...
Not only is it GigE, it's off of an on-chip MAC, unlike the Raspberry Pi which uses a USB Ethernet interface.
Is there a project page somewhere with more details?
My voice is my, Passport? Verify, me.
If there's a setting to flip the display so the watch can be worn upside-down, that would help. Hopefully they implement this.
What's the battery life, and is it waterproof? Neither of those were mentioned in the presentation, and I can't find answers to either question in the marketing docs on Apple's site.
I like NANOG (http://www.nanog.org) for network engineering topics. It's geared towards large service provider networks, not so much enterprise/small business, but still quite informative and great for networking of the social variety as well.
This project appears to have computer vision for parts alignment, which is a HUGE deal for a pick-and-place. You need your machine to know if a component is oriented improperly in the reel, and to provide positive feedback on board position by referencing fiducials for accurate placement of fine-pitch components. Other pick-and-place projects I've seen in the past have been just standard 3-axis CNC gantries with a vacuum pickup, the addition of CV means it potentially can truly compete with the high-cost units.
I've bought a number of Feit Electric CFLs from Costco, and get at least a few years of regular use out of them. However, whenever I've bought the same brand from various local hardware stores (both mom-n-pop and big brand stores) I've had them fail within a few months. I'm not sure what's up with that, but that's my experience. I have yet to try any LED bulbs due to the up-front cost and the long life I'm getting out of my CFLs, and I have no use cases where dimming is necessary.
At work I have a HiFiMeDIY Sabre Tiny USB DAC ($30) as my work laptop's internal audio is full of noise (hissing that changes with system activity).
At home, my gaming machine uses its onboard audio interface, but sends digital audio out via SP/DIF to my home theater receiver for its DAC and amplifier.
I even have an external sound interface for ham radio use, a Tigertronics SignaLink USB that's just an external ADC/DAC with some filtering and isolation which interfaces with my radio for digital modes (such as PSK31 or RTTY).