The Nook Colour costs about $250 which will make it a really cheap tablet, if you are looking for one.
The 2.2 update will give you access to a retooled Android Market, the typical Android home screen and pinch zooming.
Steve Green of SmartphoneMag, said that Barnes and Noble is still working on the Android Market app when he saw the new upgrade.
In fact he was told that Nook users may not have access to the full market. However Nook apps could be loaded via the SD card slot and seemed to run fine.
The device will still give you access to all of your Nook material via the current interface that will be switchable for the user.
What it looks like is that the Nook will become a cut-price tablet with some Android functions and App access, probably mostly book related.
Still, it does make it an interesting deal although it might have an impact on battery life at least in comparison to the Kindle.
It also means that Barnes and Noble might be less interested in pushing down the pure ebook business in the future and sees tablets rather than epaper as the best way to deliver content.