Dropbox is an great service that continues to amaze me every day I own it. It's been indispensable so far on my trip to Atlanta, syncing up my trip info and photos into one place that's backed up on the cloud and constantly synced with all my computing devices (phone, iPod, computer, laptop, etc.)
The best part: All the apps and your 2GB account are FREE!
Still not convinced you should create an account and download this app for iPhone / Android? The Common Craft folks should fix that issue.