Test Firefox OS on a desktop computer with new B2G nightly builds

"Update: Many are wondering why they see a “black” screen after launching the B2G Desktop build. It’s likely because you havent set up a Gaia profile prior to launching. here’s how you do it. (again, refer to Gaia/hacking for better steps!)"[0]

You need a full make environment to get anything running. While I understand that this is just a developer preview, this is really not a good way to get testers.

[0] http://dknite.wordpress.com/2012/07/18/desktop-builds-now-av...