I think that only station info, basic RDS text and clock are implemented at the moment. TI switching and automatic retuning to the best of several frequencies a station uses is promissed for 2.0, and other, still more advanced features later on.

As for resistor-type controllers, see here.

Dragi "Bonzi" Raos
Zagreb, Croatia
Q#5196, MkII#80000376, 18GB green