Did work fine with Tungsten T2. However bought a Treo 650...and from then on had problems with usb hotsync - it would soft reset every time I tried to hhotsync. Bluetooth was fine. The culprit was a file sync buddy apparently copies from ROM to RAM to enable the treo to be used like a usb drive. Now am not using Sync Buddy until the problem is sorted out.
Sync Buddy
Skype