I have been a member for a while but have not had too much time to contribute here.
I am an electronics engineer and myself and my software partner have been looking at X-Sim and doing a lot of reading and testing for some time now.
We want to offer our expertise to further our sim hobbies and make it easier for all of us to have fun with this...
We will soon offer a full hardware platform, which you can program based on the Arduino system.
It will be a single board that contains:
1) An arduino compatible microprocessor section.
2) 3 high power DC motor controllers.
3) LCD display
4) Encoder inputs, etc.
5) As well as other hardware...

We will sell the complete hardware platform, fully assembled and tested at a low cost (it is all surface mount technology).
Our new company website is not complete, but you can see the start: www.elec-fun.com.
Development of this hardware has not been cheap, and we will soon take orders (and have a full description with pictures) on the http://www.kickstarter.com/ page. Note, not there yet...soon!
The Kickstarter system allows you to order safely and assures us that we can recover our modest investment for hardware development, software development and prototypes.
We will also provide, at no cost, the software drivers for it to work with X-Sim, or another software platform if someone designs it...
So, what I am saying is...we will be your COMPLETE hardware solution to easily drive up to 3 large DC motors, as well as provide the software drivers for it...
Our new system, takes the best ideas we have seen here and, hopefully, integrates all of them into a really great hardware platform that should make talking to motors very fast and easy!!!
Now, someone needs to tell us WHICH software to make it work with...X-Sim, or??
I hope all the fighting can stop and all of us can get back to our hobby!!
-Gary

Los Angeles, California- USA
Sydney Australia
kelantan Malaysia
Hamburg - Germany