Well we can start a discussion about Apple's iPhone. One of the success factors of Apple's iPod is the link/integration of iTunes. Apple iPhone's will have such link/integration too (at least with OS X). The N800/770 does not have such a link/integration (syncing, photo's, video's, MP3's, calendars, contacts etc)
Opps I forgot to say: is has GSM too (it is at least a phone......)
Sweet, glorious specs of the 11.6 millimeter device (that's frickin' thin, by the way) include a 3.5-inch wide touchscreen display with multi-touch support, 2 megapixel cam, 8 GB of storage, Bluetooth with EDR, WiFi, and quadband GSM radio with EDGE -- and amazingly, it somehow runs OS X with support for Widgets, Google Maps, and Safari out of the gate. A proximity sensor disables the touchscreen when it's close to your face, while the iTunes support rocks CoverFlow
The most beautiful - finally Windows gets correct competition