FileLocker is a new 256 Bit encrypted File Storage for Businesses. You can get a free 5GB of Storage for 5 Users or for $5 a month you get Unlimited Storage for 5 + Users! Very cool.
Need an iOS and Android app though!
EDIT:
From a comment, you can currently use m.filelocker.com from any device until native apps arrive.
Hi! Check out m.filelocker.com from ANY mobile device. (native apps on their way!)