^_^ Yes. I've had a Nook Color for some time. After screwing with a bunch of the ROMs (Froyo/Gingerbread/HC) ~6 months ago, I settled on CM7 on the on-board flash. The full desktop browsing experience (Opera Mobile/Flash) makes it a speedy jumbo n810/n900.

For battery status, if you're just looking for a percentage, CM7 can give that to you on the status bar, Settings->CyanogenMod settings->Interface->Status bar tweaks->Battery Percentage.

I switched from RockPlayer to VitalPlayer (can't remember why).

I'm still looking for finer volume control for headphone listening; "Fine Volume Control" doesn't go low enough.

Other recommendations:
AndFTP (FTP/SFTP client)
DavDrive Lite (on demand WebDav server... substituting for SFTP server)
K-9 Mail (email, IMAP/POP)
Droid48 (HP-48GX calculator emulator)
Dropbox (Because I use it anyway on my computers, and it's a lazy way to send the odd small file to my Nook)
Cut the Rope (cute little physics based game)