dropbox does have a linux option, but he wants a 'cloud-less' option.

you can use a web host, creating your own 'cloud' or run a webserver at home:
http://lifehacker.com/5993596/how-to...-with-owncloud

this might be more along what you are looking for (mobile is in beta):
http://gizmodo.com/5995229/set-up-yo...t-torrent-sync