Why on earth do we (we as in the ps3 scene) need a 3.56 custom firmware?
Is there some homebrew you're not able to run? Are you backup managers suddenly requiring to run in 3.56?
We currently have the ability to run just about anything on our ps3s right now under 3.55 - i simply don't understand why there is anyone who feels there is a real and actual NEED for a 3.56 cfw.
If you want to have your cake and eat it too (homebrew and psn) - BUY A 2ND PS3.