Hi Bro. I have some questions

1) What is the screen size?
2) Can the screen tilted to some angle or fixed?
3) What is the GPS spec:
- OS - wince5 or wince6?
- Internal Memory-128RAM or 256RAM?
- Internal flash? (normal GPS 2GB Nand Flash)
- Based on picture you are using papago system? Can I change to other system like garmin?
4) Can I listen to the radio while my GPS is running?

Regards