Yep, I got a little off track since I know alot abt this in the international market...
In PK, there is little use, but go to a "huge" area like Saudia Arabia or Canda/America -its useful!
Problem is in PK, the trakker will tell you about non-existent roads as the info they ahve isnt whats on the road! Many of the raods the trakker tell you (in PK) turn out to be dead ends, non-existent or "kacha"!!