Thanks! This also appears to work on the x51v, although I'm not sure I've noticed AS-related slowness. Now I just need MissingSync or PocketMac to come out for WM5, so that my Axim can take advantage of hourly Bluetooth syncing initiated by my Mac.
BTW, can I ask a quasi-OT question? If a BT sync is initiated from the computer side, does the Axim have to be "awake," or can it wake on Bluetooth?