Hey Slaanesh,
I just realized today that we've lost compatibility with at least two games - Alien Storm and Altered Beast. Altered Beast in particular I'd just beaten the night before the update to 1.1. But now, when you start playing it - there's an odd glitch where the enemies won't die or disappear - and eventually you can't move past the opening screen. Alien Storm now won't boot at all, and it was working with 1.0.
Any idea why that would happen and if it may be rectified? I thought it might be a Sega issue - but I tested Golden Axe and Shinobi, and both worked fine.
I'm thinking I might keep both 1.0 and 1.1 on my memory card - separating the roms that work best with each.