No, it worked mostly on my desktop last time I tried it (didn't seem robust vs. 500 errors from Google, and crashed a few times). However, it's not small when you include all the Ocaml libraries it depends on, so it's not an option if you want to run it from built-in flash. And cross compiling with Ocaml isn't quite straightforward, so you'll also need to maintain a build environment on ARM, MIPS or whatever you have (e.g. using QEMU).
