I personally use a modchip and I've never had any issue with any games... and I also use Homebrew Channel and homebrews, what would a custom IOS give me?
Jacobeian said:conclusion: custom IOS seems cool for a lot of people because it probably reminds them the PSP scene but in reality, much of us don't really need to install this, you can already do most of the "interesting" stuff with the homebrew channel and a modchip.