I'm a recent convert to a smart phone for personal use. (BlackBerry in my case.) I haven't run into many particularly fantastic applications yet but I have noticed that some web sites are FAR more smart phone friendly than others. Would it be too much of a hijack to ask folks to list mobile friendly web sites too?

The National Weather Service has a great mobile site with (relatively) high res radar loops and the like.

For web sites that aren't specifically designed for mobiles I find "Bolt" browser to be a great asset. Between the BBrowser and Bolt I feel that I have things covered pretty well.