Naming tips for popen4-style library?

Hello,

I've been developing a library for communicating with sub processes via 
pipes, which is modelled somewhat after Python's Popen4 class [1] 
(although the semantics are slightly different).

I'm looking for some suggestions for a better name for the class (and 
any other comments, too).

I initially wrote this because I wanted to be able to do popen() type 
things without the shell getting in the way. You can pass arguments to 
sub processes without need for quoting etc.

Main features:

  * Object-oriented interface
    - procedural interface could easily be built on top, but haven't 
decided on best way yet
  * Access to stdin, stdout and stderr independently
  * Optional redirection of each of the above, to file/socket or 
/dev/null
  * Can get exit status of child process (including signals)
  * Send signals to child process
  * Thread safe

For example:

    Popen4.new('echo','$PATH') do |p|
      puts p.stdout.readline            #=> $PATH         (and not the 
expansion of that env var!)
      puts p.wait.exitstatus            #=> 0
    end

Any comments?

Thanks.

[1] http://www.python.org/doc/2.4/lib/module-popen2.html