#1 From all I have read, it should work with std cable because you get a basic combox with Nav.
#2 Will not work. Those apps communicate through the cellular data connection that comes with Assist.
Hopefully they'll add WiFi direct HW in the next version so you can do point-to-point WiFi connections for things like that.
With that, as long as you are in WiFi rang of the car with your phone or parked in garage with your home network, you would be able to send addresses to the Nav.
'02 E46 330i 5MT (ED Sept '02) - SOLD
'12 F30 335i Sport 6MT (ED May '12)