Toshiba is in the Windows Phone 7 game with the TG03?This article contains unofficial information.
Previously, it was speculated that the Toshiba TG03 was going to be delayed due to the fact that the company was simply waiting for Microsoft's new next generation platform. After seeing the TG03 going through its certification process through the Global Certification Forum, it might seemingly point to be an eventual Windows Phone 7 device from the manufacturer. However, there is still a slight chance that the TG03 could potentially still flaunt Windows Mobile or possibly shed its roots in favor of Android.
Regardless of whatever path it takes, the handset appears to be bound for Telstra in Australia since it has support for the carrier's 3G specific bands.
source: The Unwired