I switched to T-mobile. On my iPhone with AT&T I had full signal strength outside, but only got one bar in my apartment (two different complexes a few miles apart) so long as I was near a window and zero service on campus, outside or in the buildings. After the switch I get full bars everywhere.

Ohhh, I like that one. Thanks!

The big ass tabs in safari.

I just upgraded, it fixed the wifi problem Lion was having (a constant disconnect) that has gone un-addressed for the past year. I also like the integration between all my devices. I can't say I'm a fan of the huuuggeee tabs in safari though.