One neat feature of the April 2015 WMF 5.0 preview is that you can copy files over a remoting session.
First create a session to a remote machine
$cs = New-PSSession -ComputerName W12R2SUS
Define the source and destination for the copy. Use –ToSession to determine the remoting session you will use to determine the remote machine
Copy-Item -Path C:\Source\test.csv -Destination C:\Source\test.csv -ToSession $cs
You use –FromSession to copy from a remote machine
Copy-Item -Path C:\Source\srv.csv -Destination C:\Source\srv.csv -FromSession $cs
What you can’t do is copy from one session to another
$cs2 = New-PSSession -ComputerName server02
£> Copy-Item -Path C:\Source\*.csv -Destination C:\Source\ -FromSession $cs2 -ToSession $cs
Copy-Item : ‘-FromSession’ and ‘-ToSession’ are mutually exclusive and cannot be specified at the same time.