WinMo 6.5’s Marketplace, basically a Microsoft App Store, is getting lots of ink this week at CTIA. 1800PocketPC has some interesting news including the addition of a 24-hour “return period,” carrier-based billing, and carrier specific stores.

Best of all they found a video that repeats “Windows Phone” over and over again, ensuring you don’t forget that this is a Microsoft product.

The new OS should be a massive improvement over the old system with a unique icon layout system for finger-based gestures as well as improved performance.

Sadly, the Zune features still haven’t been rolled into WinMo which means you won’t see a Zune music store this iteration.