Actually, a obscure one did. Picsel browser, available on certain sony clie (palm OS) pdas had a very decent rendering engine for its time, tap to zoom and very

Actually, a obscure one did. Picsel browser, available on certain sony clie (palm OS) pdas had a very decent rendering engine for its time, tap to zoom and very smart gestures for zooming in and out (tap tap-drag). Miles ahead of the competition (ie, blazer and such...)