Download of xPocket 2.0 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. We recommend checking the downloaded files with any free antivirus. The actual developer of this free software for Mac is Art Coughlin. The application lies within System Tools, more precisely Device Assistants.
From the developer:
xPocket helps you to control an X-10 Model CP290 computer interface from an iPod Touch, iPhone, or iPad. Install xPocket on a Mac with an attached CP290. Nothing is installed on your iDevice and it doesn't need to be jail-broken. You will have to edit an HTML file, but HTML skills are not necessary.
You may want to check out more Mac applications, such as iStar Composer, Matchprint Virtual or FieryRemoteScan, which might be related to xPocket.