Here's a quick time lapse that I shot with my phone on the way back to Chicago from Chirstmas break in sunny Delaware. After some grading and stabilization in After Effects, I think I have something half-decent.
I shot this using the Gorillacam app on my iPhone 3GS. It runs great for a free program, but I would really like the ability to shoot at a 3-second interval, as the 5-second one used above required a little time-remapping in order to feel right. I would have shot 1-second intervals, but the phone's processor and storage were quickly getting bombarded and I started to drop frames after about twenty shots.
Again, for a free app, it's definitely worth checking out here: http://itunes.apple.com/us/app/gorillacam/id342972390?mt=8