Hugene - 3:26 pm on Apr 20, 2010 (gmt 0)
FB is trying to expand its web's walled garden. Unless these are publicly open, this is not good for the web in general. But if they are publicly open, it is bad for privacy.
Basically FB is stuck, because if they open too much they breach privacy.
Also, I have trouble understanding why people go through the work of contributing knowledge and effort to something that remains firmly controlled and owned by private hands. That's like fixing bugs in Windows.