If you are interested in trying Tribes Ascend, USD$30 from http://tribesascend.com/buypage.html for access to the beta as well as a bit of cool stuff.
Other than that, some gameplay from the beta has been released on Niichts' youtube channel, so if anyone hasn't seen anything yet and wants to see some gameplay and a short introduction to what kind of gameplay you can expect, here's his introduction video. http://youtu.be/PcIOx3WwILU
Personally I'm looking at getting it when it comes out (especially since its f2p), but does anyone know if there is LAN support?