Latest build is always the best. Lot of bugs fixes and improvements… Here you are ~ Ultimate Droid 3.3 from Crawlingcity. Ultimate Droid is one of the Android ROMs that I like. It is fast and smooth. Crawlingcity always updated this ROM based on latest UD build and kernel. And this build is based on Android Gingerbread 2.3.3 and using Tytung r9 Kernel.
Ultimate Droid 3.3 on HTC HD2
Stock 3D Launcher
SD card partition guide ~ How to create ext3 partition on SD card with ClockworkMod Recovery?
Installation guide ~ How to Install NAND Android on HTC HD2 with ClockworkMod Recovery? (Video)
Download Ultimate Droid 3.3 [Kernel: Tytung R9] NAND A2SD+ Zip ROM here.