Clever Hamster's Paper Bridge pops up for iPhone
Sketchy, physics-based sim

There have been plenty of 2D physics-based bridge building games.
It's no surprise then that there's already been a few on iPhone, notably Gameloft's graphically polished if not completely satisfactory Bridge Odyssey and RealNetworks' monkey-based success story Tiki Towers.
Paper Bridge comes from the indie, sketchy side of tracks. It's been developed by Dutch-based Clever Hamster Games, and has you tracing out beams and trusses over various cavernous gaps so vehicles can pass over them.
It uses the Box2D physics engine that's appeared in plenty of iPhone games, including Rolando, so it should offer a fairly realistic simulation.
The original release contains 25 levels, with regular updates promised in future.
Achievements and leaderboards are supplied by the OpenFeint social network, while the soundtrack comes from guitarist Doug Jamieson.
You can see how it works in the following video.
