Transferring files from Mac to iPhone

I have a MacBook Air running Lion and an iPhone 4s with latest OS. I'm planning a trip to an area where I won't have access to the interenet but should have some cell coverage (my plan is with AT&T). I'd like to use my MacBook Air to create and edit documents, send them to my iPhone and then use the iPhone to email them over the cellular network.

Is there any way to do this? I know I can create my own WiFi network using the MacBook but don't know of a way to use it to transfer files to the iPhone.