The list of non-upgraded Windows Mobile 6 handsets is getting short!  Today Sprint announced the availability of a ROM upgrade for the Samsung Ace SPH-i325 which updates the OS to Windows Mobile 6.1 Standard, adds Office Mobile 6.1 functionalities, and adds support for GPS applications such as Sprint Navigation.

As with all ROM updates, you’ll need to backup the data on your handheld before the update process because it wipes the handheld’s memory.

You can download the Samsung Ace Windows Mobile 6.1 ROM Upgrade here.