Verizon has released a software upgrade for the Samsung Omnia II (SCH-i920). The upgrade contains a handful of enhancements including Windows Mobile AKU Update to 5.0.93, Qualcomm updates, Widgetplus updates, and Facebook app updates.
You can find the Upgrade Too here with step by step instructions. Remember, upgrading your Omnia II will erase any data you have on your Windows Phone. It is important to backup your data before upgrading.