Great minds think alike (or is it No Good Idea is Original?): unbeknownst to me, while I was compiling my list of large-scale iPad deployments the last two months, someone else was, too. His name is Jim Siegl, and he is an educational technology consultant out of the Washington D.C. area.
It didn't take much persuasion for us to agree to combine our efforts into a single list in a Google Site built by Siegl. You can see our list here: http://ipadpilots.k12cloudlearning.com/
Our list, while large, is no doubt a fraction of the real total, considering the tablet market predictions for 2010 we're seeing (Morgan Stanley expects 15 million tablets sold this year, while Gartner sees 20 million).
Please help us by submitting news of large deployments of iPads, as well as Android tablets and other similar devices (smartphones, superphones, etc.) Those lists are also coming.