Hi Sebastian,
I had pointed Jan at S4A (Scratch 4 Arduino), and we've been thinking
about this more in the context of the robotics course (a
pre-intro/intro to computing). That said, there's overlap, and over
time we're going to find where these things fit.
Modkit definitely looks like the way to go---that is, it's a native
solution, as opposed to something that requires Firmata to be
installed on the Arduino (which is how S4A works).
I'm going to go ahead and pledge $50, and if it goes through, I'll
call it part of my startup at Berea. It definitely looks like
something with serious potential.
Cheers,
Matt