Can Google do something...think of the users!
Seriously, could Google mandate updates be sent out by handset manufacturers (maybe refuse them access to newer versions if they don't)...how many Android's will go unpatched because hardware manufacturers can't...be bothered.
Oh and the same applies to Apple too (stopping patching perfectly good working phones is unfair)...not that it's Google fault.
Can't they think of the planet...whales or even future children as an incentive to reduce electrical waste.