Does it have a MS OEM bar-coded Product Key sticker on the Win7 DVD included in the Upgrade Kit?
So far all of those have proven to be locked to the mobo in the S/N account of the manufacturer.
According to some reports, MS required this to issue the Upgrade Kit's Product Key license stickers on the DVD.
Another poster on here tonight gave a detailed description of the Toshiba Win7 DVD as a customized version with Toshiba interface, no Repair console, but Custom install option with Advanced Drive tools for formatting. Their DVD will boot to clean install.
So it might be useable as an installer as are all Win7 DVD's, but use of the activation key is likely restricted to the intended machine.