Hi! Thanks for the question. I promise I'll do a hub about it, but for now here's the basic info: It's an HTC HD2 from T-Mobile (I think HTC is releasing similar phones with other carriers, too). I love it!!! The screen is big and gorgeous. It is pretty lightweight for the size, especially -- weighs less than an iPhone, for sure. Not a touchy cranky phone -- very sturdy and dependable.
Improved my travel? Yes! I love having Google maps at my fingertips and with this big screen reading the map is easy. It has a "footprints" features where you take a picture and it stamps it with the GPS location.