Hawken is under an ongoing development cycle much like all the latest free-to-play titles - the Minecraft model if you will. During GDC, Sam Clay saw first hand how explosive the Nvidia tech was and witnessed the new mech in action.
According to the game's producer, Jason Hughes, he first support class mech for the game will be the Technician. It compares quite well to the medic in Team Fortress 2, plus, it can put up defensive shields.
In addition to all this mech goodness, Adhesive Games has teamed up with Nvidia to create some pretty impressive explosive and destructible tech. Think geomod on steroids.
You can play Hawken right now by heading to PlayHawken.com