i dont think so, if u have the unlimited everything plan then it should be free, if its only unlimited text i think it does cost more. so if u still want to im from your phone, i know this works on aim, you can make it so that all your ims are forwarded to your phone. they will be in the form of text messages. i dont really see why u want to im if you can just text tho. but if theres specific people you im then you could just tell them to put in your cell phone number and their ims will be sent to you as texts.
