There are a few people in the mobile ecosystem whose opinion I make sure to listen to. Mark Guim has been around the block almost as long as I have and here provides a (month) long term review of the Nokia N900, running Maemo 5, of course. If you're currently using an N97 (for example) and had been wondering whether the grass was greener on the other side, his review should answer your questions. Summary? If you live in the browser, you'll love the N900 - if you live in apps and media, then best stick with Symbian and the N97.