How did this guy ever organize his buddy list when he used AIM or whatever? It's painful for a day, but it's not like people move between groups very often, an

How did this guy ever organize his buddy list when he used AIM or whatever? It's painful for a day, but it's not like people move between groups very often, and unless you are a celebrity it's an infrequent task after the initial setup. Plus, they've made the UI for it slippery smooth (kudos to Google+ for the effort there).