I'm a storage-hungry Windows Mobile user, and I'd very much like Windows Mobile 7 to be compatible with SDXC cards. It was ery frustrating to have to wait so long for Windows Mobile compatiblity back when SDHC cards came out, and I hope that Microsoft moves quickly to make Windows phones compatible with upcoming SDXC cards. By the time Windows Mobile 7 phones come out, a 64GB iPhone may be available, and SDXC compability would help Windows phones compete in storage.
Not sure how best to communicate this request to the Windows Mobile development team. If there's a better place to do it, please let me know!
--Alan