Shuttle has revealed at Computex Taipei 2009 that they are still working on a Z-Wave based home automation system.  They revealed last year at IFA that they were working on a Z-Wave solution, which was on display again this year at Computex.  From last year's announcement:

One of the highlights will be a complete Mini PC with an embedded 7 inch touch screen based on the Shuttle Barebone D10 versatile platform. Everyday applications, home automation, media playback and video surveillance are all managed by the Shuttle D10 and will be demonstrated live to the audience.
Based on the Z-Wave wireless home network technology, the D10 controls household appliances and its sensors such as lighting and alarm devices. For enhanced security in the home environment, Shuttle's surveillance system works with up to 16 cameras that can be accessed directly via the D10's touch screen.

This year, they seemed to have added a Z-Wave bridge (similar to some of the other router based Z-Wave appliances out there) named Bridge 58.  Some pictures can be found at the AVING news site.