hey, it's an idea - a good one.
At the first commenter: you have a busted battery. My phone (which is OLD) can still stay on standby for about a week on a single charge; essentially, because I start charging it only when the battery's about exhausted, and I leave it until the charge is complete - not much longer when I can pull it off.
On the other hand, people I know that spend their time plugging then unplugging their phones and overcharging them soon end up with a phone that can stay up at most a couple day, or on a 20-min conversation.
I'd rather forgo 10 hours out of my phone's weekly charge, than forgo none and have it last only a couple days.
@anamaniac: indeed. Personally, I exchanged my computer's PSU for a 80+ one, and I got only good things to say about it:
- it's much less hot
- since the system gets colder, fans spin down more readily and save some more power
- less fan speed = less noise
Thus, there is less power wastage from the PSU directly, less power wastage from the fans, temperature is lower so components wear down slower, less noise from the fans... Performance stays the same, and the premium I paid for the 80+ is rather rapidly getting paid back by power savings (electricity is not exactly free where I live).
If they could make phone chargers that disabled themselves when the phone is done charging, it'd be great - since they've decided in Europe to standardize phone chargers on USB type B plugs starting this year, this could even be made optional by third parties - for those who don't like it.