I would suggest U to have a look at this very useful thread where your question is already answered.Also there are mentioned many other keyboards.I have it on my phone, I love it. I just came across this app, is it possible to install it on the nook?
GG
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I have it installed on my Nook. It works just fine. Although, I prefer Swype, which I have on my phone, but I haven't been able to get it to work on my Nook.