I did not see a Nook Color (NC) specific thread yet, so I figured I'd start one...

Played with the stock ROM for a couple of days while waiting for the SD card to show up. Got the SD card and in about 20 minutes had it booting from the SD into the most current CyanogenMod7. WOW! I must say that it was a much easier process than dual booting my N800.

Huge difference. O/C to 1200Mhz (ondemand)

Cool Stuff: ( All info culled from the NC XDA forum)

SD Card for Boot: SanDisc Class 4 or lower.
Counter intuitive, see XDA Thread

Netflix (sideload) - installed with no issues, looks great.

Book reader: Aldiko
Media Player: RockPlayer
Organizer: Springpad
Calendar: Business Calendar

Now to open to the forum, App recommendations!

Thanks Matt