It fits fine in my pocket its not that bad as many think, an for now it's the only way to get heavy use of the computer/phone. Lithium battery's will get better, read that with the help of nano technology the capacity can get up to 10x what it is now. Would be cool with a battery with 10000mAh+ or as i would say 10Ah+, this will of course need a good charger or some time to make a full charge from empty.