Palm wants to remind all Treo 750 owners that the free upgrade to Windows Mobile 6.0 will be going away on November 1, 2008. If you have a Windows Mobile 5 Treo 750 and are interested in upgrading, you should grab the software from Palm's website pronto.
The Windows Mobile 6 upgrade provides faster downloads, improved calendar functionality and compatibility with Windows Vista, among other things. You don't *have* to upgrade if you don't want to, but really it's a worthwhile upgrade.
If you purchased your Treo 750 after December 2007, your phone came with WinMo 6.0, so there's no need to pay attention to any of this .