www.ovi.com is Nokia’s equivalent to Microsoft Live Mesh or Apple’s MobileMe.
[OviSuite] (http://www.ovi.com/services/support/nokiaovisuite) runs on Windows XP and Windows Vista.
It provides Cloud backup, storage and synchronisation for contacts, calendar, tasks, photos, video, maps, favorite files and folders etc. It is currently free to download and use for 20 models of Nokia phone. It is being extended to all future Nokia S60 phones.
Currently missing features are messaging synchronisation for texts, MMS, Instant messages and emails. This feature is already available in [Nokia PC Suite] (http://europe.nokia.com/A4144905) which is the non-cloud equivalent product.