Sony didn't need to screw with the linux support, it has no effect on their bottom line and has no effect on their network and no effect on the gaming experience. When they launched the device they pimped linux support and lots of folks bought it because of that, now they're flipping those customers the bird. Most of the folks who ran linux on the device also bought games too. Now they have to buy another PS3, one for games, and one for hobby stuff and a few of those are using the machines for educational work.
For those who make comments about how Sony has the right to do this, or how the PS3 is just a games machine and therfore anybody using the device for anything other than games can stuff it, I hope you cry when your favorite game gets net play support dropped because it's not making money any more. And please, don't complain about it on the forums.