If you are searching current location of any mobile then you can know it by online mobile location tracker. This is a SMS based mobile location tracker.
For know the current location you have to send a SMS by use of this tracker. After get you SMS, mobile owner will read that SMS. When mobile owner will open your SMS an SMS alert will be send to you by mobile tracker provider in which there will be information of time of open you SMS and location of mobile.
By this trick you can know adject current location of any mobile. This facility will be launched very soon in all smartphones.