I ::heart:: my Kindle!
I've had it for 1.5 years.
I think the Nook is prolly great, too. My only hang up with the Nook, is what if B&N goes out of business and Borders is the victor? I feel like Amazon isn't going anywhere, it will be there for many years to come...
I do really wish Kindle would figure out how to let us loan books to other Kindle users, I hear the Nook does that...
I love how easy it is to get new books, and the battery life is super long!