I'm looking for a tablet that's "more portable" than the iPad or Galaxy. Preferably around a 5" screen, something that will fit in a pocket or on the belt. Looked at cell phones, especially the HTC and Samsung models that have 4.5" screens. My current job doesn't allow cell phones inside the building, so a cell phone would spend most of its time sitting in the car. Bluetooth and wifi are a must, as I'd be using Skype or Google Voice (if it's a tablet and doesn't have cell phone capability). Of course, gotta be able to do documents, spreadsheets, video, music, etc. Any suggestions?