A keen-eyed buddy of mine, George Roberts, tweeted this morning about new Marvel 88W8797 drivers on Windows Update today. The newer drivers (14.69.24040.136) feature full Windows 8.1 (post-preview) support (i.e. NDIS 6.4) and the required high throughput/low latency improvements needed to properly support scenarios such as wireless display and Skype.
Speaking of wireless display -- some of you may have noticed the feature stopped working on Surface Pro after upgrading from Windows 8.1 Preview to RTM. Well, it's time to turn that frown upside down because after installing these drivers, it's back.
Thanks for the heads up George!