Always useful to have access to storage online, even if it isnt much.
Dropbox synchronises with all your devices, so whatever you have on one, is going to be on all of the others. Its restricted in space for free accounts, for obvious reasons. You get 2G free straight away, and 250mb for anyone who signs up from your link. At the moment there is also a beta testing program for camera uploading and if you upload enough times, you will get another 3G, so thats a free 5G without having to annoy your friends at all.
You can also post to facebook and twitter from inside your new account so all your friends can see the link too.