Yes
mine does
You get nikos phone when you start the first mission
yes , but you can't use it
there are a few you have to put them in your phone though
by pressing s
Up on the D-Pad
nope
you can only use it for calls.but you can not place them.
use the cell phone
Yes after you enter one go to the bottom of the phone menu.
do the first misson or second just do some missions then u will get the phone