This is very interesting...
![Clap](http://www.rcindia.org/Smileys/default/clap.gif)
I've always thought of building something like the Rover (used in Mission Mars).
Linear Actuators work great and are a substitute to hydraulic/pneumatic actuators.
I'll think about building something like this (after my X std boards) -
![http://farm4.static.flickr.com/3657/3381047684_033443a44e.jpg](http://farm4.static.flickr.com/3657/3381047684_033443a44e.jpg)
RC Excavators
In the picture above, standard servos and acrylic glass is used.
Imagine using High Voltage Servos and Carbon Fiber !!!
![Drool](http://www.rcindia.org/Smileys/default/drool.gif)
and maybe using an Android Phone + Java app to control it.
That will take a lot of time, effort (and money
![Tongue](http://www.rcindia.org/Smileys/default/tongue.gif)
)