anyone else having this problem or know of a solution (other than change the name! )

Solution ID: 31578

Use a shorter username on the Treo 650:
User names longer than 10 characters may cause an issue beaming from a Treo 600 to a Treo 650. In order to receive beamed data from a Treo 600, the Treo 650 user name will need to be shortened to 10 characters or less.

Caution: If you have third-party software that was registered to a specific user name, it may not function properly after this procedure is performed. Contact the third-party developer for more information, and to transfer your software to your new user name.

On your desktop computer, launch Palm Desktop (even if you synchronize with Microsoft Outlook or another application, open Palm Desktop).
Select Users from the Tools menu.
Select the Treo 650 username from the list, then select Rename.
Enter a username 10 characters or shorter, and select OK.
Select OK in the Users window.
Perform a HotSync operation.
The Treo 600 should now recognize the Treo 650 when beaming.