Best IM program for TP?

[strra]

i just want to get people's opinion about what the best IM (AIM, MSN, etc) program for the touch pro is. i've tried palringo and beejive but both have a problem where if you put the phone into standby via the button on top, they stop sending/recieving (and eventually disconnect)... i know that s2u2 has a "blank screen only" option, but it majorly kills the battery life...
so i guess what i'm looking for is any IM program that supports at least AIM and actually keeps me online and able to recieve IMs while the phone is in standby

thanks,
Randy

P.S. i know about AIMs SMS feature, but i'm not a huge fan

*edit* i did do a search, by the way. this topic was brought up once and was never resolved