A new Windows Mobile 6.5 has leaked, which brings many of the features which were only demoed at MWC. The new build, version 21169, for example now features the new version of IE6 with the finger-friendly buttons. The built also brings performance improvements, with Sliding Panels being much faster, and the ROM is also more stable.
The ROM is at present only suitable to use by experts to adapt to other devices, but these individual builds should not be long in coming. To read more about this visit PPCGeeks here for more information and the relevant download.
Via WMExperts.com, thanks Wreiad for the tip.