These batteries are awesome! I tried one out on my wife's ipod touch. I think they could work on button placement and/or design, but overall it is the best product of its kind on the market.
My buddy is actually the http://www.IPWR.COM guy, and he is selling the batteries for less than $59.95. In fact, he has a coupon that gets you 5% off that even! He has no S&H fees. He also gives you 15% off if you buy two or more batteries at a time. The coupon is case sensitive and is: SEOMIRE
Hit me up if you have any questions or such, and next time I talk to him I'll pass on the comments or whatever.