Here's a couple of questions to think about.
What does Sony have to gain by not letting people use homebrews. It seems to me that what ever amout of money that they think they would lose with lower software sales would be more than made up with extra hardware sales. Imagine if they had some creative thoughts...what do you think if you could buy a memory card pre filed with a ps 1 emu and a few games? Take it a little further...what if some of these games were listed as bonus games and were different on every 50,000 memory cards so that consumers would want to trade them or buy multiples of the same card to get the different bonus games??
In regards to automatic updates for new games has anyone tried re-routing the download to a memory card so that it does not get to the os (if that is possible) or even hacking the os to delete or partition the download.
Just thinking out loud.