Feature request: bashism "<<<"

This is a feature request.

There is very interesting bash extension for interactive use: "<<<".
For example, I often use oneliners like the following

   **$ bc <<< 2+2
   4
   $**

instead of

   **$ echo '2+2' | bc
   4
   $**

What do you think about implementing this in oksh (OpenBSD /bin/sh)?
