The exciting Microsoft Surface tablet will be available for purchase on October 26, according to Microsoft’s US Security and Exchange Commission (SEC) filing. The tablet will go on sale on the same day as Windows 8, fulfilling Microsoft’s promise to release the ARM-based version of the Surface around the time of Windows 8’s General Availability (GA).

Microsoft plans to sell the Surface exclusively in Microsoft stores for an as-yet-unannounced price. It will, however, “be competitive with a comparable ARM tablet.” The same goes for the Surface Pro, which will be similar in pricing to an Intel Ultrabook-class PC when it is released 90 days after the Surface. In other words, a $500-$1,000 range for the whole Surface lineup probably isn’t too far-fetched.

The question now is whether or not to pick up an ARM-based Surface or wait for the Intel-based Surface Pro, which is a full-fledged PC.

[SEC via Pocketables]