If you're going to the 2011 General Assembly of the Unitarian Universalist Association, in Charlotte later this month, be sure first to sign up at http://eventmobi.com/uuaga2011/. I did -- and you can register (as distinct from registering for GA) yourself. To show others you'll be there, no? And to see the schedule, map of the exhibit hall and other useful tidbits. It's good on a desktop -- loads very quickly -- but it's real utility will be on phones and other mobile devices.
That said, a mobile version of UUA.org would be welcome, too.