Assuming you won't be joining us at PAX, and you're like me and own neither a PS3 nor an Xbox 360, you'll get your chance to play Shoot Many Robots on the PC on April 6th.
Demiurge's recently-released platformer releases on Steam early next month, and it comes with pre-order bonuses, all Valve-themed. One set of gear turns P. Walter Tugnuts into Gordon Freeman and a selection of robots into Portal turrets. They'll also be a backpack item for use in Team Fortress 2, usable by the Pyro and Medic.
Also of note is that the controls have been redesigned for the PC release, if you played it before on a console and found yourself frustrated by the setup.