I, originally, had the Nook Color. Then I tried the Kindle Fire for about a week. I would say great device (nice build, great interface, etc). From the short time I spent with it... I saw no software issues whatsoever. I, ultimately, ended up going back to Nook [Tablet] because most of my library is with them and I love the interaction between the Nook interface and Facebook (my own personal little "thing" I like

). Can't go wrong with either one, but I will give it to Amazon as far as the seamless integration of all digital things purchased from them. It was really nice seeing movies I'd purchased on the Kindle.