I have used Blackberry & Pocket PC...tried just about every remote control app out there. Logmein for free kicks ASS!! Go2MyPC is...well jus the same.
With that said the BEST cross platform app out there for remote control across platforms is NetSupport.
http://www.netsupportmanager.com/mobile.asp
I got my company to up for the licenses and I can't LIVE without this app. Between this and ORB for your PPC you have EVERYTHING covered.
1 question though...if your running a PPC device why would you want another program to manage your mail?? Don't understand that about Soonr. Anyhow jus check out Netsupport...it is the best hands down!
Y1