I start tinkering with the idea of using a Mac Mini as a server and an iPad/iPhone as the client.
The Mac Mini would integrate with OBDII, iTunes, GPS, video streaming, etc., and would interface with the iPad/iPhone via the web server. On the iPad/iPhone an app implemented as a container with a web control... Naturally the implementation would support HTML5 for video and controls. The client app could also take advantage of iPad/iPhone functionality.
All this because I don't want to install a monitor...