Exchange – Device Related Cmdlets

Exchange 2010 – Get-ActiveSyncDevice:
http://technet.microsoft.com/en-us/library/dd335068(v=exchg.150).aspx

Exchange 2013 – Get-MobileDevice:
http://technet.microsoft.com/en-us/library/jj218706(v=exchg.150).aspx

Differences:
http://exchangeserverpro.com/mobile-device-management-cmdlets-exchange-2013/

Get-ActiveSyncDevice is deprecated for Get-MobileDevice.
A Task-Based Guide to Windows PowerShell Cmdlets:
http://technet.microsoft.com/en-us/scriptcenter/dd772285.aspx