Lately my phone has been on the fritz, out of nowhere it has started randomly dropping calls and not wanting to send out text messages when I want it to. It's been fine for the two years I've owned it, but it seems like it is in its death throws, unfortunately. So it's time to get a new phone, but every phone I look at over with T-Mobile they just want me to extend my contract, which I don't want to do. My contract with them is already long enough as is. So, any experience with buying unlocked phones? Do you just swap out the sim card and then everything is as it should be? Will my service provider know I've changed out phones? Have you had any issues surfing the internet or whatever with unlocked phones? Also, what phone would you recommend for around the $150 range? Thanks.