Life with Linux

Well folks, here goes nothing! :)
I'm starting my Car PC project. Nowadays everybody seems to have one!
The plan is to build a multimedia system for my car, with full internet capabilities.
The control is done by a touchscreen and all development will be done on a virtual machine and then all updates will be downloaded (like most OSses nowadays anyway).
At the end I hope to have:

- Full internet access in the car (via a GPRS connection)
- Music
- Pictures
- Videos and Movies (to display for other passengers, not the driver!)
- GPS location. Been able to display were I am (via google maps) and then upload my position to the web in real time (for other to know where I am)
- Skype Phone, with dial-in number
- Weather forecast (via Weather Underground) and real time Rain Map (via Met Met Éireann) as it rains a lot around here!
- Internet Radio so I can listen to Irish and Portuguese radio stations with good quality. I also wish to be able to pause live radio if a call comes in
- Done in Ubuntu (because that's what I know best!)
- Full touchscreen interface

Feel free to comment people!