Needs a location
I don't have time to commit to organizing this, but if someone else did, I would totally attend as often as possbile.
A co-worker of mine runs the one in Albuquerque (http://openhack.github.io/albuquerque/), so if you think you might want to make the commitment and organize one in Missoula, but want to chat first with someone that's been doing one for a while, I can probably get you in touch.
How does OpenHack work?
You can hack on anything! Any language, framework, public/open-source, personal, Arduino, etc.
You don’t have to have an idea to hack on! You’re more than welcome to come just to pair with someone.
Start off with a quick round of introductions (every night!), to say who you are, what you’re working on, and if you’d like help with your idea.
These are simply guidelines for running an OpenHack, and they’re meant to be forked (https://github.com/openhack/openhack.github.com). Existing meetups/hack nights (mornings too!) are encouraged to fly under the OpenHack banner! Multiple meetups in a city based on time or location are welcome also.