Microsoft Windows Vista, the company's new operating system, could cost about $349 for the premium version, if a price list posted and then removed from Microsoft Canada's Web site is to be believed.

Neowin.net had it first. ZDNet blogger Ed Bott grabbed the price list before it was taken down.

Rather than doing a straight price conversion from Canadian to U.S. currency, he calculated the relative increase from Canadian XP prices to Canadian Vista prices (according to the Microsoft Canada price list) and applied the same relative increase to U.S. prices for XP to get to a U.S. Vista price estimate. The result: Vista Ultimate, $349; Business, $269; Home Premium, $239; Home Basic, $199.