Originally Posted by Valnomien
I think you can use multiman indefinitely. I'm sure deank will continue making mm compatible with all cfw as he has already. Look at the list of cfw that is supported. All the way back to 3.41. You can stay on kmeaw as long as you want and now you are in luck because scene has been releasing eboots and patches for 3.55 and 3.41 like you wouldn't believe. Read up!
Edit: Although I can say that the new Rogero 4.21v1.09 is good and seems very stable so far. Its easy to move to it from kmeaw too, a few minutes of work and you got the new cfw with ability to play new games! Very nice. MM is compatible too. I am waiting around a bit to see if 4.30 is gonna be worth it or if we should just sit tight for now.
CECH-2001A 120g, Rogero 4.21v1.09
CECH-A01 250g, cobra 4.30+Cobra Dongle<--YLOD 4/17/13