The keynote speaker, Diana Laufenberg, was so inspirational to me. She is a history teacher from the Science Leadership Academy and is using many interactive history activities.
Her TEDtalk is shown here.
One of the ideas she shared was to have students take pictures of history around them and then write a six word story about the picture.
I found a twitter page dedicated to this practice here: @sixwordstories.
In addition, Techchef4u, Yolanda Baker and iPadSammy led a session called Apptivities which you can view below: