Installing Linux on the Ps3 is just fun for experimenting with it.
I did it...had fun...caused ps3 OS to lose control of Bluetooth lol. Fun fun.
For those hardcore users that run clusters of networked ps3's it's a big deal... But they won't be signing into psn anyway if they use it primarily for Linux and processing.
It sucks mostly for those who wanted to try the install, not so much for the casual gamer imo.