Kepplr - Kepplr is a cross platform Data Sync solution - With Kepplr, your Documents, Photos and Contacts are backed up safe on the cloud, and you can access them all using the web interface at www.Kepplr.com But, that's not all! You can access the same content across other devices too. Kepplr is launched for Android, JavaME but soon launching in iOS and Desktop Avatars too! So, you can have an Android phone, JavaME phone, iPad and Windows Laptop all in sync! Kepplr - Your Life on the Cloud!
Dessy Dessy is a DEsktop Search and SYnchronization framework for mobile devices
GGSync A Java J2ME project for synchronizing Google gmail contacts with a cell phone. The synchronization is done directly using an existing internet connection on the mobile device. http://sourceforge.net/projects/ggsync/
mSync (Java) Use mSync to back up your files, contacts, and settings