I'm curious, why are you concerned about 2gb of ram? What do you plan to do on the iPad that requires more than that?
At most you might notice that some memory hungry apps that don't suspend correctly "start over" when switching between multiple apps.
Correction: memory hungry apps that don't implement state restoration correctly.
Ignore the specs. Try one out and you'll find that it simply isn't an issue in the vast majority of cases. iOS is very good at managing RAM.
Also with the new multitasking features added in recent releases, additional memory becomes a bigger feature add.