Simple function to render results of a command in real time (or near real time)

PoshMon.psm1

function PoshMon {
param (
[Parameter(Mandatory=$True,ValueFromPipelineByPropertyName=$True)]
[string]$command,
[Int32]$seconds = 300
)   
    Begin {
        [System.Console]::Clear() 
        [console]::CursorSize = 1
        $now = Get-Date
        $scriptblock = [scriptblock]::Create("$command | format-table")
        }
    Process {
        while ($now.AddSeconds($seconds) -gt (get-date)) {
            $output = $scriptblock.InvokeReturnAsIs()
            if ($output -ne $outputLast) {
                [System.Console]::Clear()
                $output
                }
            $outputLast = $output
            start-sleep 1
            }
        }
    End {
        [console]::CursorSize = 25
    }
}

Examples -
Poshmon get-vm
Poshmon 'get-process | sort PM -desc | select -first 8'
Poshmon 'ls c:\projectdir'