It should become a mix between Home Automation and multimedia. Until now, a lot of focus has been on the multimedia part, but I'm getting more and more into home automation. I like to think that DHS has some unique features, notably that it's fully multi-monitor, and it can handle any size (from 7" up to whatever). Screens are specially designed for touchscreens.
The application itself consists of Widgets (small apps you can drag and resize) and modules (full screen applications). This is what I currently have released :
Widgets
- BE railway delay (I live in Belgium, if you wonder where this comes from)
- weather forecast
- rain radar (shows where rain is falling)
- MP3 remote control
- Time & date
Modules
- MP3 player
- Internet radio player (with radio station database)
- Photo slideshow (you can choose any monitor to send the slideshow to)
- Podcast player
- Shoppinglist (and use your iPhone to consult the list when shopping)
- Timer
- Video player (play anything for which a codec is installed, including HD and subtitles)
- Calendar (uses Google Calendar as backend)
In progress
- analog clock
- dvd player
- NL, DE and UK railway delays widgets
- Enymate integration
Still in "idea" phase
- too much to write down

I use this application myself at home, but I make it available to everyone. It's free, no nag screen, no spyware, ... Website is http://www.digitalhomeserver.net. The only constraint is that you can not use it for commercial purposes.
I bought a few zwave devices, and will now integrate this functionality in DHS. If anybody would be interested to cooperate (not only for zwave, but for anything that might be useful) I would be more than happy to talk. I contacted a few people that are working on zwave (also on this forum) to see whether they would be interested to join the efforts, but no success until now. Which is a pity, because the DHS front-end combined with a good HA backend looks like a killer combination (at least to me

Hope you like it.
Soitjes.