Imagine how thin and light it could be if batteries were not required.
Atomic isotope? Would be even worse for tech waste, but imagine the 'battery' life. 25 years...
Ideally you'd have a removable power module which you can take from device to device... a "zap drive". Brought to you by the US Nucleics Corporation.
They can be shaped as coins and become a new currency, it glows green when fully charged. Devices(including cars) have coin slots to take in power.
Spoken like a true geek. Normal people don't want to know that such things even exist. Let machines with radiation detectors track them down in the dumpsters.
So would I. I'd love to know what percentage of the iPad 2's weight is the battery and glass.
Your best bet is to post a comment on the teardown if this hasn't been added yet.