Why, yes I do..but mine's running on VZW. I really don't consider it an antique, given the upgrade to WM6 (granted, a little late), the 128MB of memory, and the fact that it can still do more than an iPhone
I don't believe there are any additional charges to use Wireless Sync. Here's VZW's link for Wireless Sync
http://support.vzw.com/features/data_services/email_wireless_sync.html