Here's a surprise. Nintendo's most interesting game of E3 2011 may also be one of its least-publicised, because The Rolling Western for the 3DS looks great.
Mixing action gameplay with a tower defence-style strategic element (including what looks like resource gathering), it's not even a retail game. It's a downloadable from the new eShop for the 3DS!
It may not be flashiest game of the show, or the most marketable, but there's something about the art style combine with the mish-mash of gameplay styles that's put a hook in me. Can't wait to see more.