[Dyvim]

This looks really great. You may no longer even need desktop ActiveSync\Windows Mobile Device Center!
I love the idea of a cloud backup of all my phone information. iTunes does an excellent job of backing up my iPhone (it remembers every single piece of state information like browser and YouTube viewing history) but it still ties you to a desktop and any data you've collected since your last sync can be lost.

I wonder if they plan to take this to the next step and link in your PC to the cloud. i.e. sync my Outlook and My Document folder from my PC(s) to the cloud and to my phone. Having the same set of data and files all in sync on all my PCs and all my mobile devices would be killer. MobileMe does a pretty good job (after a rocky start) on doing this for my contacts, calendar, and bookmarks but leaves out the files (I don't count iDisk- I just want my documents synced automatically without me having to copy anything anywhere).