It seems that most 4G stuff is for US only at the moment.

Finally a higher density screen for a tablet, but then the next wave of Android tablets have 1080p screens, so I guess it's a general trend.
Other than the screen, it just seems like a processor upgrade (unless you can make use of 4G).  If the next gen Androids have the quad core CPU, they may pull ahead in that regard.

Though the screen density increase is enough of an improvement IMO.