I am using A1jatt's ROM found here:
http://forum.ppcgeeks.com/showthread.php?t=95394
It is a superb ROM, and Mobile Shell works flawlessly on it. Haven't had any problems so far. The only downside is that A1jatt is not using a TP2 anymore, so this ROM will no longer be updated. But its stable, smooth and has everything I need.