Dave, Ernie the Attorney and Bernie Goldbach discuss the merits of various cellphone/pda devices. I’ve successfully fought my wife’s attempts to have me buy a portable phone for a few years now. Some of these devices are tempting. These are the things that I would require, and none of the devices listed have them all: Cell Phone with headset/mic jack QWERTY keyboard MP3 Player (holds at least 50 songs) Palm OS driven Mac-compatible synchronization applications Email, web and instant messaging The following would be nice, but their absence would not be deal-killers: GSP capabilities Color display Back in the mid-80s…