Dell is supposed to release a 10 inch Windows 7 tablet this year, according to info that leaked out in February. Now the time frame is more certain and we’re waiting for the product to drop this Fall, according to a source inside the company. We’ve been hearing about the existence of such a slate ever since October 2010.

The choice of Win 7 is a tad strange, know that Microsoft might showcase Windows 8 on tablets this summer. However, the OS will only be ready in early 2012 and Dell wants to release a product earlier than that. If the company announces the device in fall, it will most likely miss selling it as a back to school product, but it will still be able to make the holiday season.

Dell already has the Streak tablets to make profit from, with their 5 and 7 inch diagonals.