I am sick of the poor service I am getting from my cell fone. I also want a data plan but they are cracking down on data limits. Thus I am thinking of using the touch 4 as a cell fone when connected to internet via mifi. That way I can have unlimited data and cell service. Basically I will keep the mifi device (clear 4g) in my car when I am out. I figure that most times I will be within 200-300 feet of my car. I have a few questions/possible concerns: 1. What is the battery life of touch 4 when wifi is always on? 2. How good is the touch 4 when using it as a phone? 3. Is the mic and speaker good for phone purposes? Or do you prefer to use BT headset? How good is the speaker phone? 4. I was planning on using google voice for my phone number. Does it the app work well with touch? Does it have to be launched to work or will it ring when it is not running? 5. If the touch is disconnected from network, does it automatically reconnect when its back within range? 6. Has anyone tried this and successful? If this is not the right forum for this thread, where should I ask?