I had the same question and a friend of mine who owns one says his 2 big killer features are the battery life and the instant on. In his case, he likes to play games (Angry Birds, Plants vs Zombies) around the house, read ("especially on the toilet," he claims), and do quick lookups of movies and pop culture references while watching TV. Apparently for those uses, the instant on and long battery life make it a better fit than the smaller-screened phones and wait-for-boot netbooks. In my case, I don't mind using my phone for the searches, netbook for games, and ebook reader for reading. That being said, when the netbook and e-book reader start getting outdated, if I can consolidate them into one device I'd consider it.