Congratulations to Cicadaman & co. for getting Froyo running on the Nook Color! Visit the nook Color portal!
See Rooting new hardware FIRST if you have a nook original with a 1003* serial# or above.
Talk:Honeycomb Google Apps and Market
From nookDevs
For Windows users (or others although the files have be pushed manually), you can also use the HoneyGApps.v2.zip file which will also install maps. It can be found here:
http://forum.xda-developers.com/showthread.php?t=937752
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I tried the instructions for emulating the Xoom. Many, many apps (such as Facebook, Google Plus) wouldn't show up in the market. Much better to stick with the Nexus S instructions.