I'm a web developer so diving into pebble dev was my first time writing C.

That said, I've really enjoyed it. The SDK is excellent and hacking apps on a watch is terribly fun.

Here are some of the apps I've made so far:

https://github.com/MilesOkeefe/freedom-clock

https://github.com/MilesOkeefe/magic8

I think it's absolutely a hot space. I know a good number of people who work for Pebble and love their product, however I personally put that particular device aside once I got a Google Glass.

I have something in the works for Pebble coming very soon, however I actually launched GlassTesla last year. http://glasstesla.com There are currently ~200 folks who happen to have both Google Glass and a Tesla Model S using the app.

I'm interested in this as well. If you're in SF come out to http://hackendo.techendo.co/

I'll be there building and figuring out how wearables fit into the future of tech.