Much like Amazon's Kindle Fire, the Nook Tablet is a really great piece of hardware at a very low price thanks to content subsidization. Also much like the Fire, the development communities like to take advantage of that and bring out the device's full potential. Just a couple days ago, the Kindle Fire got the full Android Market treatment, and now the Nook Tablet has the same bonus as well.
As usual, you will have to root the tablet to do this, so the standard disclaimer applies. If you root and install the Market, you will be voiding any warranty and possibly giving up proprietary services on the tablet. Of course, so far Barnes & Noble has been pretty supportive of people hacking their readers, so hopefully they continue that attitude.
Just as the original Nook Color became a great budget tablet, I am hoping that the Nook Tablet will be made just as good. So, if you like high end tablets but don't like their price tags quite as much, you may want to keep an eye on what developers do with this dual-core device.[SlashGear]