Firstly, the 3rd generation iPad's overheating "issue" is truly a non-starter. There were a few reports of serious overheating, but the majority of these reports are simply the fact that the 4G radio and the retina display hardware run a bit warmer than the 3G radio and standard display on the iPad2.
Originally Posted by nopewayout
Secondly, as far as "thicker size", yeah, it's thicker... but only 0.024 inches thicker... with the exception of a few tight-fitting cases, the extra thickness is hardly noticeable.
Finally, what "battery issues" worry you about the iPad2? I could easily get 10-12 hours of fairly heavy use on a charge...
So I guess I'm saying that I don't see any of this as a "problem". Where do you go that you won't be able to plug in your iPad2 charger should the need arise?