This preview was published after the announcement: http://mattstauffer.co/blog/getting-your-first-site-up-and-r...

Forge is essentially a platform that makes it very easy to provision a Laravel-ready server (though it states it works with other frameworks too). It's a replication of Laravel Homestead (http://laravel.com/docs/homestead) on a server, so you can have the same development and production environments.