I've heard about an app called ForeFlight that's got some great reviews and I might want to buy it. But what I can't find out is if it includes ALL airfields in the continental US? Could someone please tell me if smaller and private fields, like let's say Lake Arrowhead, CA or Ernst, CA are included (examples only)?

Thanks.

I have been using ForeFlight for iPhone since it came out.

Worth all $70 and then some.

I can't answer your question if it has EVERY airport out there, but I am 99% sure it does. What is cool is when you are looking at an airport, there is a "Near" button that shows all nearby airports. Great for alternate planning.

Check here and ask the developers:

iPhone app for pilots with aviation weather, AFD, flight plan filing, METARs, TAFs and more

Both Ernst and Arrowhead are in there for sure as I just checked.

It is probably the one app the will keep me forever on the iPhone. The design, polish, and very thorough amount of info that it provides is amazing.