Tweechme is an app that was created by Susan Bearden at Holy Trinity Episcopal Academy to teach educators how to leverage twitter to create and enhance their PLN. This is the first ever MAD-teacher app (an app created by a teacher in the MAD-learn program).
What is MAD-Learn? "MAD" is short for "Mobile Application Development", and MAD-Learn is a new educational program from the Education Mobile Technology thought-leaders at Crescerance.