Wammu - Wammu is a mobile phone manager using Gammu as its backend.

Funambol - Funambol is the leading provider of platforms that power many cloud services.

OxyFile - Oxygen Forensics - Mobile forensic software for cell phones, smartphones and other mobile devices

ownCloud - ownCloud is an open source project enabling businesses to host their own cloud storage while maintaining regulatory and compliance needs.

MyPhoneExplorer - WHAT IS MY PHONE EXPLORER? Imagine if your PC could be used to keep track of your mobile phone? How would you utilize a PC client that connects to your phone? Read more about MyPhoneExplorer.

fruux - Free service that takes care of your contacts, calendars and more so you don't have to.