I had some money left over from my tax returns so I figured why not obtain one 
of these.

The stock OS is based on Android 2.1 (Eclair) with some customizations made by 
B&N.  The nutshell version is that the company wants a closed environment to 
deliver a high-quality reader, and the devs there are working on a B&N-centric 
app store.  So, if you're looking for an ebook reader... get a Kindle :).  I 
don't say that because of B&N's policies; I say it because I think that Kindle 
is a superior reader.

On the other hand, if you're looking for a cheap Android-based tablet and you 
are willing to void your warranty or muck around with SD cards then NOOKcolor 
is a great purchase.  All of the options require a miniSD card.  Unlike most 
(all?) Android phones, NOOKcolor (Nc) does not have a recovery boot.  Instead, 
the device boots from the miniSD slot if a bootable card is installed.  This 
makes it well-nigh impossible to permanently brick.  Even if you destroy all of 
the partitions on the internal memory (eMMC) it can still be booted from uSD, 
and then adb can be used to restore filesystem backups.  So, here are the 
options.

Auto-Nooter is an automated tool that roots the stock OS, installs a minimal 
set of Google Apps along with multi-touch for those apps, enables the Market 
and Gmail, and adds a few other odds and ends.  This is the most stable root 
option since it uses the stock OS and drivers for everything.  This is 
important for video playback as none of the other options have working hardware 
acceleration, yet.  It has some glitches, like resetting USB debug mode on 
reboot, but other than that it is eminently usable.

Nookie Froyo is the first of the SD-based installs and requires a 2GB uSD card. 
 It's a simple image written to a card with dd, plugged in and booted.  Very 
simple, very easy and requires no modifications to the stock OS.  On the other 
hand it is quite buggy, and running the OS on a class 4 card is slow.  Class 6 
or 10 is recommended.

CyanogenMod 7 is already the most polished non-stock OS option.  CM7 is based 
on the Gingerbread AOSP and is ported to almost everything that can run Android 
and can take a third-party OS install.  While most phones have RC1 available, 
the Nook version is still in experimental nightly builds, although some 
consider it stable enough (mostly) to be a daily driver.  CM7 is an eMMC 
installation, so it will wipe the stock OS and void your warranty.  Note: the 
build target is called "encore".

A version of Honeycomb is now available as either an SD or eMMC installation.  
This one is interesting because it is hacked together from the SDK version of 
the OS and drivers from stock.  It is the least-polished of the options but it 
is a nice proof of concept, demonstrating that Nc is capable of running 
Honeycomb.  The uSD version requires a 4GB card; the eMMC version needs a card 
big enough to hold the recovery flasher and the Honeycomb zip files.

The last option isn't really an option: it's waiting for B&N to release the 
Froyo/Gingerbread version of the stock OS.  That allegedly will happen some 
time this year and will probably include a number of NOOK-centric improvements 
along with the aforementioned B&N-branded app store.

Me?  I'm currently using the Auto-Nootered stock OS, primarily because of the 
video acceleration.  I'm looking at this as being a very good portable video 
device.  I will eventually switch over to CM7 once they have a release 
candidate ready.

--Rich P.


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