I saw your booth at Maker Faire last weekend and your boards looked amazing, but I've never worked with Aduino boards because I don't know C. Will your boards work with Cylon.js or Artoo? Would the tinyshields and displays be supported?

https://cylonjs.com/
http://artoo.io/

Thanks

or would uLisp work? They list support for ATmega-based Arduino boards, which is what TinyCircuits use?

http://www.ulisp.com/

It looks like these interpreters are using Firmata to control things from the computer. Our standard TinyDuino processor board should work for basic IO operations, but it looks like none of our software libraries and examples would work.

I'd like to quietly mention that Arduino is an easy way to start putting stuff together in C++

Lua, Javascript and other interpreters can run on Arduino based hardware, but it usually requires more available memory. 32kb isn't enough to run an interpreter on top of it.
I think you'll have to use C(++) instead. But basic things come of quite easy, as Ben wrote.