Free cloud storage for Mobile

Microsoft: SkyDrive 25 GB, client for Windows, iPhone

Ubuntu Linux: Ubuntu One 5GB, client for client for Android,iPhone, Windows, Ubuntu

HTC: Dropbox 5GB, client for Android, iPhone, Windows

cloud client for BlackBerry

Box.com: http://www.box.com/personal/mobile-access/

Dropbox 5GB free, http://www.dropbox.com/blackberry (blocked by GreatWall Firewall)
SugarSync: http://www.sugarsync.com/locale/zh/pricing.html (blocked by GreatWall Firewall)