[leoedin]

Battery technology is not simply a product of consumer demand. There's all sorts of reasons why battery life is currently hard to increase which won't be solved by throwing more money at the problem. There are definitely some improved battery technologies on the horizon (particularly ones which use air), but the reality is that improving battery life without making an explosive is actually a hard problem to solve. Most of the gains of the past decade have come from reducing computer power consumption and shrinking down the electronics in devices (leaving more battery space), not from increasing battery capacity.

There will be improvements, but they won't be easy or particularly fast.