don't know if you guys have seen this put a guy is putting out PR for his "alternative" to the pi (Rhombus Tech) .. but much better than the pi for $15 total cost ? ... it does look a bit like "pie in the sky"
Joking aside for its intended purpose the pi is great and i'm sure it will get critically the volume of free developer support it needs to succeed .. and in fact i will be buying a couple for my young nephews and nieces to learn with for exactly this reason.
... delay, "real" pricing and lack of software support are the most common reasons for failure in this field ... eg genesi's MX53 <$50 board looked good until they pulled it before xmas ... the trim slice looked good until they ramped its price through the roof and still has very little support for its tegra 2 chipset features (little free developer support because of its cost)
here are the links to Rhombus Tech
for real world applications (eg replacing my squeezebox server running on a hacked iconnect) though the CPU and RAM in the pi are too slow and too little
At CES last week interestingly Chinese companies were showing "android boxes" based on Cortex A8/A9 SOC (SPC supposedly cost around $7 in bulk) for around $50 which look a really nice spec - >1GHZ A8/A9 (c/w GPU capable of 1080p), 512MB RAM, Wifi, SD, HDMI, Ethernet etc ... If i knew a little more about hacking these devices to get CLI debian on it I would be sorely tempted to retire my iconnect for one of these little babies ... rather than wait for the pi2
Heres an example