A:AnswerYes you need to open a new line. If you are a Verizon customer, you just need it to be activated on existing line.
May be open a new line close it if 200$ is worth for it.
A:AnswerThe person I purchased this for is a Cricket user and has had no problem in the past using the Cricket SIM card in unlocked Samsung smart phones. If you request a SIM card from Virgin Mobile I know of no reason why it wouldn't work. Double check with a Best Buy rep to be sure.