IIRC the first time is for entering into a patent deal with MS.
Now it's for this:
HTC Willfully Violates the GPL in T-Mobile's New G2 Android Phone
(Freedom to Tinker) -- http://lwn.net/Articles/409548/
There's a theory that says "if you put a million monkeys in front of a million typewriters, in a few years you can get the collected works of Shakespeare".
There's another theory that says the internet was invented precisely to test this :-)