Microsoft has just announced they have released a tool that allow admins to automatically crawl users computers and import PST files into Exchange Online or Exchange 2010.
Download http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=28767
Thanks to the following blog for the info:
http://www.grouppolicy.biz/2012/01/out-now-official-pst-to-exchange-import-tool/
Obviously this isn’t something that you would do a lot, but in case you need to know how, here’s how you can reset all user passwords in a Microsoft Office 365 environment:
Help on accessing Office 365 powershell:
http://onlinehelp.microsoft.com/en-us/Office365-enterprises/hh124998.aspx
Once your connected run the following commands:
Import-Module msonline
Connect-MsolService -cred $cred
Get-Command -Module msonline
Get-msoluser |set-msoluserpassword -newpassword “password” -forcechangepassword $false
That’s it! 
OK so it’s also written by Microsoft but it is interesting to see some of Google’s vocal supporters now making the move to Microsoft.