Developed in association with RadiationBurn, Newton Vs The Horde is now available for WiiWare (North America out now, European version coming February) and iOS, with an Android version coming in Februrary 2012.

WiiWare

You can download Newton Vs The Horde by accessing the Wii Shop Channel on your Wii console.
Got a Wii but don’t know how to access WiiWare? Take a look at these helpful sites from Nintendo:
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Nintendo WiiWare

iOS

Newton Vs The Horde pits you against a horde of stinky zombies across 4 varied locations. Build traps to squish, throw, spear and splat the zombies, or watch them explode when hit with light bulbs. Featuring a full physics engine, players can create all sorts of traps to stop the zombies in their tracks.

The original Dream Build Play 2010 Old Spice Challenge winning version of the game is available for download on Xbox360 from the Xbox Live Marketplace.