I love this program! The support from the author is excellent. As a pilot I have all my localities loaded, prognostic charts, and other useful flight information. Allows for METARs, TAFs and upper wind currents as well. All this in one program. Use it with Leopards spaces and have the weather at the push of a button. Great support. Needs a travel/flight planner and it'll be the only weather program you'll need. I wrote the same program with Applescript, but WX has a lot more to offer. Even works with the iPhone.