According to MacMinute, PalmOne and Apple are offering free Treo 600 accessories if you buy a Treo 600 by September 30th.

This is the best confirmation that I’ve seen yet for the Treo 650. Considering that PalmOne generally releases their “fall lineup” on October 1st, and that the rumored Treo 650 isn’t compatible with Treo 600 accessories, it looks like they’re trying to clear out their inventory before the 650 gets announced.