As noted by Biz Stone just a few moments ago on the Twitter Blog .... the team at Twitter just rolled out a few changes aimed at making it easier to work with your 'follower' and 'following' lists (directly from the web interface).
The ability to SMS, Follow, Direct Message, and more just went live.
I doubt anyone would argue that most of these changes are long overdue.
Simple on the surface, yet Twitter just got better.