People were buying PS3s just to run Linux to do massive number crunching tasks, OK maybe only in scientific communities but still, and given that unlike the 360 from Microshits the PS3 is built with quality components such activities were causing a massive loss for Sony. Also half the BluRay rips on Piratebay are probably from a PS3 with Linux (it's piss easy to copy the BD files from PS3 Linux) but they won't publicly admit that.
If you don't like it then sell your PS3 and get a 360 or Wii....trouble is then you have an inferior/more limited machine....with just as much of a locked out system made by peope with disgusting profits from monopolies selling shit products to billions of morons (Gameboy/Windows)

Let's face it for Sony to make a profit on PS3 sales (not a fortune) they need to sell to people who buy lots of games....this is not your average Linux user on PS3.