One of my co-workers emailed this to me today. It looked pretty cool and may prove to be useful for some of you iPhone owners that like this kind of stuff. The first link is a description and the second link is an iTunes URL. You will need to have iTunes installed to view the second link...

http://www.knightarmco.com/bulletflight/index.htm

http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=300903039&mt=8

And here is a similar version with the same concept...

http://itunes.apple.com/WebObjects/MZStore.woa/wa/viewSoftware?id=300045171&mt=8