I recently switched to T-Mobile because I've become quite a data hog and find their free music streaming and video very helpful for me -- and for the kids to tether their iPads. However, T-Mobile service, especially indoors, isn't as strong as AT&T. My wife cares more about coverage and decided to stick with ATT. It would save about $20 a month to have us both on the same carrier but I have a feeling it will be nice to have "two chances" to get decent service in a particular area. I just wondered if anyone else has two different carriers within their family for the same or different reasons?