Hi, I saw an iPod Touch/iPhone game someone was playing where you were building a bridge with lines/nodes akin to Tiki Tower.....but a lot more realistic/simplified visuals. I asked the guy what it was called, but he didnt know (he didnt close it since it was too addicting, lol), said something about axis or building...but wasnt sure. I did some googling and it looked a lot like this game: http://www.bridgebuilder-game.com/images/bbg/bbg2-3.gif (though a little more colourful) Any info would be great.
Try Bridge Oddysey by Gameloft. Or World of Goo. They are both bridge building games and fairly addictive.
There are also paper bridge and boulder bridge Just remember that world of goo is about a billion times better then any of the other bridge building games in the app store