Yes, the new iPod touch has a dedicated speaker port next to the dock connecter, rather than emitting sound from the headphone jack/dock connecter as in the previous generations. As for the gyroscope, it's exclusive to the 4th gen, the previous generations only had an accelerometer. Not many games are optimized to take advantage of the gyro, but a few popular games such as Real Racing and N.O.V.A offer gyroscope support.