Visible Power Button
This is just a warning. Don't use the V2.0 visible power button mod on V2.1. It will break many of the new features in the CyanogenMod updates, plus most probably cause stability issues. I'll try to post an update to the mod soon.
If you have the visible power button mod on V2.0, and you want to install V2.1 now and preserve your data, you should disable the power button mod first by going to settings and selecting EMPTY in the power button slot.
Device: HTC HD2 US
Bootloader: MAGLDR 1.13
Recovery: Extended TWRP 126.96.36.199
DataOnExt ROM:Tytung NexusHD2-JellyBean-CM10.1_V2.4
NativeSD ROM: Tytung NexusHD2-JellyBean-CM10.1_V2.4
Partitions: 350 system / 15 recovery
SD Card: Patriot LX 32GB Class 10