pros:

1) great looks
2) screen resolution
3) full keyborad
4) more memory
5) better camera
6) tv output
7) magnetic stylus
g-sensor
9) scroll control to zoom in and out

cons:

1) buttons!
2) buttons!!
3) memory card in under the battery cover

I read about short battery life, but can't see difference with Mogul. With Slide 2 Unlock it seems like battery life will only improve.

Overall be prepared to "buttons shock". There is no huge upside compared to Mogul but a number of nice features.