HDMadness has released another version of this CFW based on 4.30 for the PS3, this time removing the annoying Demo Mode notice, improved stability and more!
For those who have taken the leap to custom firmware above 3.55 might want to take a look at this. Dubbed the next Kmeaw of 4.30 CFW, or 4.21 with 4.30 spoofs,.  <!–more–> this custom firmware might be the next gen of firmware with the most game compatibility. Well that is what most comments via the sources below suggest. Even with the previous statements this firmware is not without bugs. Such bugs include the elusive XMB grouping bug. I bring this info to you without actually testing it myself. So those avid psx-scene members that are willing to give us some feedback would be appreciated. Mod on! Game on! and advance!

•More Stable than any other 4.30 CFW out there (Tested with numerous PS3, slim and phat models)
•Can run games with the latest updates signed with Keys up to 4.30 without any patching needed
•PSN enabled
•Cinavia protection disabled
•No « Demo Mode », XMB fully optimized so you can have the best performance with your console