Except that we wouldn't get "more" daylight - it would just be lighter later. It wouldn't get light until like 9 or 10am in the northern part of the US (I'm talking the NW, NE, lakes states, etc -- not alaska).
I'd rather just get rid of DST. It's supposed to conserve energy, but I'm not convinced it makes a difference. They say you don't need to turn on your lights as early in the summertime, so you use less energy, but you're also home at an earlier hour in the day (read: hotter part of the day), requiring you to turn on your A/C earlier than you normally would (given that you have A/C).
I don't care for it.