The whole point of the skins is so that you can make it do anything you want.
Want an accelerometer input, then make an input and tie it to an accelerometer function voila. Display it many ways, by monitoring it.
The outputs can do many things. How you use them is up to you.
Tire Pressure sensors are wireless and need a pairing device to receive and interpret the signal. This is not something the Brain does or will do in the near future.
And the program is embeddable into any skin and any program. You can make it look like anything you want again.
I suggest you download the MDX installer package and look at the configurator.
Currently I am working on a skin that will be the default released with MDX based off of the GTR.