Virgin Mobile customers can now purchase the iPhone 4S on several of the telco’s 24-month plans. The iPhone 4S is available on Virgin Mobile’s Fair Go and Big Plans.The Virgin Mobile plans offer a high value of standard calls and text, as well as generous amounts of data. Customers also get unlimited calls Virgin to Virgin and free voicemail in OZ. Calls are 99c per minute plus a 40c call connection. The new iPhone 4S was released just a week and a half ago, but already Australians have been quick to grab the new handset from the shelves. The iPhone 4S includes the “Siri” application which allows the phone to respond to verbal requests and commands. The new iPhone also boasts an 8-megapixel camera that also records HD video at 1080p resolution. Virgin mobile offers the iPhone 4S in both black and white.Prices quoted below are a monthly cost. Plans are on a 24-month contract.iPhone 4S 16GBBig Plan $29 + $19 mobile repayment = $450 credit, 250MB of data Fair Go $49 + $8 mobile repayment = $400 credit, 2GB of dataFair Go $59 + $5 mobile repayment = $700 credit, 3GB of dataiPhone 4S 32GBFair Go $49 + $13 mobile repayment = $400 credit, 2GB of dataFair Go $59 + $10 mobile repayment = $700 credit, 3GB of dataTopless $89 + $0 mobile repayment = Unlimited standard national calls and text, 4GB of dataiPhone 4S 64GBFair Go $49 + $18 mobile repayment = $400 credit, 2GB of dataFair Go $59 + $15 mobile repayment = $700 credit, 3GB of data Topless $89 + $3 mobile repayment = Unlimited standard national calls and text, 4GB of dataTo sign up to any of the above plans, contact Virgin mobile on 1300 768 103.Click here to view the Optus and Vodafone iPhone 4S plans.