I’ve got my Palm Tungsten T2 talking to my PC over Bluetooth, using a Linksys USBBT100 Bluetooth Class 1 USB dongle:
The best thing about Bluetooth is that I can use a great piece of software called BtSync, which wakes the device up at a configurable interval (I currently have it set at an hour) and does an automatic HotSync if my PC is within range.
This is beautiful. I don’t even have to remember to HotSync and when I wake up in the morning, my AvantGo and Plucker stuff is all up to date.