Toshiba has released a free Windows Mobile 6.5 upgrade for the TG01.
This new software will make your current TG01 a Windows phone, running Windows Mobile 6.5. This will give you access to the Microsoft Marketplace applications store and My Phone, together with a choice of home screens.
Note: The update will replace the current ROM image and will erase partnership, all user data, and programs on your device. Be sure to back everything up before you start.