Espruino - javascript on a microcontroller?

I'd forgotten all about this, until a parcel arrived yesterday, from Singapore or somewhere like that. I've been hitting eBay quite hard lately, so it could have been any number of things. But it turned out to be my Kickstarter reward for a project I backed in October last year.

Espruino is a fancy microcontroller which supposedly lets you code in Javascript and use a web-based editor to compile code. "Burning" the code to the chip is no more complex than copying it to a micro sd card and shoving it in the slot.

This is likely to be one of those one-off, shove it in a drawer and we'll come back to it sort of things (like the old mbed platform of a few years ago). But when there's another rainy afternoon with nothing much going on, maybe it'll get taken out for a test-drive for a few hours (unless, like today, there's international rugby on the telly - then it'll just have to sit in the drawer and wait 'til another day!)