1. 2.0 adds this mode, called "Transient"
2. 2.0 I think addresses this problem, I don't use the tuner all that much
3. 2.0 has an info mode clock, and a few visuals that use it. Nothing persistant. There is a 1.03 hack for getting a persistant clock on the screen, check the riocar.org downloads, kernel kacks. It needs a new kernel, and a program to run on the player. It should have a link there to all the instructions.