Yes Veiko, this is exactly the case. You can use a regular monitor (or TFT), HDD, whatever. Here is a link to a pretty good list of hardware devices available:
http://www.controlled.com/pc104/products.html

I actually don't want to replace my empeg either, but with the right software these other systems could be really cool. You could run video or navigation on them without any additional programming.

Alex Lear