I currently have the everything data share 1500 plan with 3 lines including my HTC hero, which I have had since 10/11/09. I am able to add 2 more lines at 19.95 per line. Do you guys know if It would be able to put the evo4g on the 4th line and get the discount/rebate and then port my number from the hero to the evo and still keep the hero as 1 of the 4 lines and put a new # on it