I have a copy of Microsoft ActiveSync and I intend to use it with my O2 XDA Pocket PC phone. I don't have the sync cable, so when I try to use infra-red it doesn't connect. It keeps on saying "Connecting" for a long time. Also, when I used an XDA Exec with the sync cable, I found out that there is no program to use the PC to write messages or to call from the PC like you can with Motorola, Sony Ericson, and Nokia devices.