The WMV codec is working for me on both a Mac Mini and Powerbook. While they studder with WMV-HD content, even my P4 3.2 does too, so no real difference there.

The trial is slower then the unlocked product by a noticible amount though. It seems due to the scrolling trial message it applies to playback, and also ensuring it cuts off at 50%.

I've only had experience with version 1.0.2 though, so maybe it is an improvement over older versions. Not sure.