Green phone and red phone button to accept and reject calls and to start phone app. This is like the most important feature i need. Open office port.
Port of Dalvik and android store, should not be tooo hard but will instantly give us thousands of apps.
Better keyboard. AKA more like G1 or at least 5 rows.
Built in VPN support for at least pptp, cisco
Built in support for SyncML.
Native port of putty.
Full port of all common linux command line tools like nslookup, mc, wget, bash, grep etc in one installable package.
Decent call list.
Vibrate phone when the call starts ( when you dial you do not have to put the phone on your head to hear rings, just put it when the phone vibrates like the newer G1 )