Don't know if anyone made a thread about this, but the 3500 mAh battery is up for sale on Seidio's website. 69.95 gets the brick to add..to our already giant phone!
Ships 12/7 and claims "
It has 133% more capacity than the original battery and comes with a black replacement door featuring Seidio's signature soft touch coating."
http://www.seidioonline.com/product-p/bacy35htp2-bk.htm