A nice aspect of this is that it is making use of a new capability of ClojureScript to bootstrap itself. This means that it can run its own compiler from within

A nice aspect of this is that it is making use of a new capability of ClojureScript to bootstrap itself. This means that it can run its own compiler from within JavaScript, thus making it easy to create ClojureScript REPLs in environments where it wasn't previously possible. So long as TouchDevelop runs a JavaScript engine of some sort, it should be feasible. (Replete is evaluating ClojureScript forms directly on the device from within JS, without going to a backend via the network.)