I got a new cellphone in october but i would like to get a new one. I don’t have internet on my phone so i want to be able to put my SIM card into a phone that can bounce off of wi-fi signals.I’m not due for an upgrade so i would have to buy a new cellphone. What i dont want is a big bulky one. I would also like to know if blackberry;s can use wifi signals. Please Help : )