Sandswept have finally revealed some of their long-in-development competitive roadbuilding game, Detour. Yep, it's a bit of an odd one. It's basically sat in the SimCity realm of laying down infrastructure, while at the same time being multiplayer and competitive. Using bombs to blow up enemy roads is as much an option as normal building business. It's a little weird, as you can see from the video walkthrough I've posted below.
The game is out later this year, in "Q2". So that's Detour.