I found a great aviation app for the iPhone-

[disamuel]

http://www.seattleavionics.com/iPhone.aspx

It's free, and has great information about airports and weather.

[MIKE]

For a place called Seattle Avionics Software... you would think they would have a different location in their screenshots.

[FalconHatTrick]

Love this app!  Everything contained in one app. The weather feature are the best of this app.  pulling TAFs and METARs from surrounding airports even winds aloft.  Definitely a +1 in my book.  Also having zulu time next to local time at the top is an added bonus. Would be the perfect app if they added approach plates to it like fltplan.com's app.

[JeffDG]

Seattle Avionics makes an awesome PC app called Voyager.