Always have your stuff when you need it with @Dropbox. 2GB account is free! http://db.tt/yrF28xq

I use Dropbox for a bunch of stuff. I can:

• put a file (e.g. a pdf) from my computer in to Dropbox, and read it later on my iPhone
• put a pdf of sheet music in to Dropbox, and play from it on an iPad
  
• do an "offsite" backup of important files
  
• share files that are too big to share as email attachments
• share file systems with other Dropbox users

Download it and install it from here: http://db.tt/yrF28xq