A leak of the forthcoming Honeycomb (android 3.2) ROM is now available!
The process of installation is certainly not for the faint hearted (with no less than 19 steps!), but the end result is a vast improvement on the Gingerbread Flyer experience with full Pen support throughout the OS, all the niceties of Honeycomb but with a sprinking of HTC Sense enhancement throughout!
Hit up the Flyer forum for full details. :)