Summary of the new feature / enhancement

From the PowerShell for every system! idea, Tee-Object shouldn't need a system specific value expression to output to a console (and the pipeline) but simply tee the object to both the success stream and the information stream.

Get-Content data.txt | Tee-Object ($IsWindows ? '\\.\CON': '/dev/tty')  | data_processor.exe

Proposed technical implementation details (optional)

Wishful thinking:
(see: Can you redirect Tee-Object to standard out?)

Get-Content data.txt | Tee-Object -Console | data_processor.exe