We move away from "cheap diy" when we bring Iphone into the discussion (not even gonna touch the street racing bit)
But aside from jail, it also doesn't come w/java by default, and etc. etc.
FYI, I did make arrangements to get an old g4 with osx10.4 on it, so I have a pretty nice suite of machines handy to test with (ubuntu,osx,win95,winxp), though I have avoided any windows newer than xp thus far.