I had the BatteryBoss review the no name 3200mAh, and you Seidio users can still hold the throne for now :P. (the reviews in my sig).
I wish someone would donate their Seidio 3500 to him (he gives them back) so we can learn what they're really putting out!
I'll probably send him this one next:
http://cgi.ebay.com/Extended-Battery...item3a59cb7381