Media Sign Pro ( has released version 4.0 of their Mac-based digital signage software. Media Sign Pro is designed to simplify the creation of digital signage.

One of the highlights of the new release is the addition of dynamic playlists. This allows administrators to update video and slideshow playlists by updating the contents of the folder where the media is located. Dynamic playlists are fully compatible with cloud-based storage services such as MobileMe or Dropbox, allowing changes to be made remotely by simply uploading a file via a web interface.

Also included in this release is the Twitter zone, allowing audiences to engage directly with the digital sign by having their tweets displayed on the screen in real-time. The zone is fully customizable, has multiple display modes, and has a built-in content filter.

Version 4 also includes a revamped template chooser allowing users to choose from 12 professionally designed templates for their digital sign. All templates are fully customizable.

The release also includes new design functionality for various zones. Users can now add shadows or rounded corners to any of the zones within the sign, have the option to maintain image and video aspect ratios, and add captions to slideshow images. The caption feature makes it possible to add customized text and backgrounds to all images in a playlist.

The new release will be available to all clients free of charge, even those who are still using versions 1.x or 2.x. For new users the cost is $499.