Commercial Equivalents

Photoboof - http://photoboof.com/
This is a very strong commercial package, and is part of what inspired development of OpenPhotoBooth. $600 for a commercial license.

PSRemote - http://www.breezesys.com/PSRemote/
Used for remote control of Canon PowerShot cameras, added a photo booth mode in version 1.6
$75, only uses Canon cameras, not a bad thing, but they cost a bit of money too.