Google provides you a very good contacts manager. http://contacts.google.com Google also gives you the ability to synchronize your phone contacts with the contacts on your gmail account. I found this quick tutorial to do contacts sync on Nokia 5800 xpress music phone. Now contacts on my Android phone (Google Nexus One) and Nokia phone (5800 Xpress Music) as always in Sync and backed up ;) Steps of enabling the Contatct (only Contacts) Sync on Nokia 5800.Without images:Go to Menu -> settings -> ......