How is the battery life? It looks MUCH larger than the iPod touch, and having a media player is all about portability and apple totally wins at that game. Its no good if its thick and heavy. How is its ability to connect to wifi, they show people using maps in the car but if you need wifi, I think that would be kind of pointless. It would be hard to get wifi in a car unless you had a MiFi or another mobile hotspot but I hear those don't work too well with location services anyways. The pricing is similar, but from what I hear apps on android cost more, and apple's apps are very cheap IMO and there are sales all the time. Apple also has the upper hand on games too.
If they gave this a low cost internet always connection, then I think people would really snap it up, but as for now I think apple wins.
Once again I wonder how well this device will be supported by the manufacturer, apple has the best support of all and you can be sure when investing with apple that you are getting what you are paying for and they won't drop support in a matter of months because a product isn't selling well or its not what everyone expected. This is something I am concerned about when investing a couple hundred in a device because a lot of touch competitors just fall to apple and become unsupported vaporware...