Capture Notes Easily and Take Them Everywhere

I'm checking out an web application called Evernote (www.EverNote.com). It's supposed to allow you to tag items off the web, your own notes, pictures from your cellphone, twitter tweets, pretty much anything you can think of, in a way that you can categorize and find them. It ever will read words from images (although I've only had partial success with it - still, that's something). The notes are then available on your computer(s), on a webpage, and on your mobile phone. It appears to be a simple way to capture, categorize, and access your notes. It looks pretty slick and the interface looks pretty easy to use (imperative) so I think it shows promise.