The Microsoft My Phone service is now out in public beta for everyone with a Windows Mobile 6.x device.
With My Phone you get 200MB of storage and you can synchronize your phone data that contains contacts, appointments, sms messages, email, music, pictures and more. Backing up applications is not possible through My Phone (yet).
You also get your own My Phone webpage where you access through your PC , there you can edit and search your data. Edited data is synchronized back to your phone. Synchronization can be set to manual or automatic. Your My Phone account is connected with your single sign-on Microsoft Live account. Should you loose your phone you only need to install the client on your new phone to get all your data restored.
The beta is free and should provide enough storage space for most users for basic data storage.
Visit http://myphone.microsoft.com/install with your mobile browser to install the My Phone client. Clients for both Pocket PC and smartphones is available.
Engadget has some more info on the service here, also Norwegian paper IT-avisen has an article in Norwegian.
