I don't know about the differences, but the Leapad is sold out everywhere. The only place you can find them is E-bay going for 4x their value! Availability might dictate your decision!
the innotab is better as the apps dont cost $ is what I heard. The screen is bigger on the innotab. i bought my boys the innotab for their spring birthdays.. rom ebay - waiting still and got the leappad ipad from my mom.
I also found (as I am in Canada) the battery charger pack wasn't available in Canada for the Leap pad.
Re: v-tech vs. Leapfrog
the innotab is better as the apps dont cost $ is what I heard. The screen is bigger on the innotab. i bought my boys the innotab for their spring birthdays.. rom ebay - waiting still and got the leappad ipad from my mom.
I also found (as I am in Canada) the battery charger pack wasn't available in Canada for the Leap pad.