And maybe Nicads too ?
"The company also showed off a 2,000mAh battery, which took three minutes to recharge, but the phone that housed it had been made 5mm (0.2in) thicker than normal to accommodate its girth."
Well it is sounding much like much of that old tech revamped.
I bet another 5mm would get you a 7500mah Zerolemon anyway.