It looks as if they are just removing all the connections to Google services and making the chromebooks developer friendly with things such as git and npm preinstalled.
I'd have to say your best option would be the Parrot AR Drone. It's probably will be higher than your price range but it's definitely worth it. I personally have one and have even programmed it to dance to music. It's extremely easy to work with and there are numerous libraries out there for most languages. I highly recommended it, you don't even need to modify the drone to start developing for it. I've built my own quadcopter and would have to say I still prefer the AR Drone when it comes to development.
Okay explain to how forking would work with this license. Forking a project is a huge part of creating a OSS community. Would licensing have to go to both parties? I don't see any explanation of how it would work for this license.
I just wanted to show everyone the project that myself and two friends cranked out in the 24 hour hacking session at HackRPI this weekend. It's a central website the contains quick code reference for 8 langugages currently. The idea was that if you know a programming language already, then you more or less know how to code in all of them. All that you're missing is the syntax for that language. So this site is suppose to solve that. It's targeted towards those that already know how to code and just need to learn a new language in a quick and dirty fashion. I'd love to hear what you guys think.
Also it is far from done. The project is open source and hosted on Github pages. So the good news is that you can help us out with a pull request. We're hoping this can become community driven and mantained site that can can help everyone.