Android Manager WiFi is a Free solution,which allows the Android phone to connect with PC wirelessly via WiFi .
* Contacts: Edit and Backup Contacts.
* Messages: Send and Backup Short Messages at PC.
* Photos: Import and organize photos with albums. Edit and Upload photos to Android Phone as wallpaper.
* Videos: Management of video files.
* Music: iTunes-like interface to manage music files and playlist.
* Applicaitons: Install APK file and backup applications at PC.
* Files: Manage files in Android Phone.
* Sync: Synchronization Contacts/Calendar with Outlook,Outlook Express and Windows Contacts.
All user contents can be managed and backuped Quickly,Securely with PC. And no need to worry about the leakage of private information or losting,breaking, and switching phone. Android Manager support all Android Phones. If it supports 3G network, that could be better!
Download it here: http://global.mobileaction.com/product/product_AM.jsp