Question : Problem: ActiveSync 2 Devices at once

Is it possible to Sync more than 1 device at a time to a computer with ActiveSync 4.5.  I have a client who needs to sync 3-4 hand helds nightly.  If it's not possible with ActiveSync, is there anyother way to achive this functionality?

Answer : Problem: ActiveSync 2 Devices at once

http://technet.microsoft.com/en-us/exchange/bb288524.aspx

The specific answer to you question is down the page a bit:
"
You can also synchronize your mobile device with the Exchange server by using the desktop pass-through option that is present in all Windows Mobile powered devices. Desktop pass-through lets your cradled device use the desktop computer's Internet connection to connect to Exchange ActiveSync.
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