Then I remember there was the Lynx and the obscenely priced TurboExpress (though it was cool to play Bonk on the go ). The TurboExpress was such a clunky handheld, like the Gameboy on steroids, but it always felt really substantial (I didn't have one, by the way). I only played a friend's Lynx a couple times, so I can't remember it too well.

I think we all know how well the TurboExpress did, and that thing could play the same games as the home console, quite a substantial feature.