Nook Color

Source code

B&N's legal page has source code for the Nook Color (see "Third Party Software Terms").

Nook Simple Touch Reader

Interesting paths

Networking

##### wpa_supplicant configuration file template #####
update_config=1
ctrl_interface=tiwlan0
eapol_version=1
ap_scan=1
fast_reauth=1
network={
        ssid="attwifibn"
        scan_ssid=1
        key_mgmt=NONE
        id_str="B&N Store"
}

Dissecting a uRamdisk

In update packages, ramdisk.img is renamed to /boot/uRamdisk. 

   1 # Skip 64-byte header
   2 dd if=ramdisk.img bs=64 skip=1 of=ramdisk.gz
   3 # Uncompress
   4 gunzip ramdisk.gz
   5 # Extract
   6 mkdir ramdisk
   7 cd ramdisk
   8 cpio -iv < ../ramdisk

Once modifications are made, you can recreate the image: 

   1 find . -regex "./.*"| cpio -ov -H newc | gzip > ../ramdisk.gz
   2 mkimage  -A ARM -T RAMDisk -n Image -d ../ramdisk.gz ../uRamdisk

Source: xda-developers - View Single Post - NT: Build root filesystem, which also describes recreating the ramdisk image.

Source Code

From B&N's legal page:

Barebones Cyanogenmod describes what programs/APKs included by default w/ the ROM you can delete. E.g. phone dialer, messaging, etc.

Some I think are unncessary for the Nook: 

adb remount
adb shell
cd /system/app
rm Mms.apk
rm VoiceDialer.apk

V6 supercharger modifies Android's default OOM killer settings. Supposedly manages RAM better?