It's not an OS upgrade. I Don't own the laptop yet, but plan on buying it before xmas. I'm not sure if I should just get it now with vista, wait for W7 or just wait for Xmas deals.
That laptop, however, fits my price range and I like the specs.
It also comes with Vista 64 so by the time Toshiba makes a W7 series of laptops I'm pretty sure they will be 64-bit as well. Ill take the advice from you guys and stick with 64-bit.