Amazon has released a software update to version 5.0.3 for the Kindle Touch. Although the description of the update is limited to "general software improvements," it appears to speed up page turns and menu navigation — two areas which were notably sluggish. You can download the firmware manually right now, or wait until Amazon pushes it out over Wi-Fi in the coming weeks.
Kindle Touch update 5.0.3 speeds up page turns and menus
Amazons latest update to version 5.0.3 for the Kindle Touch speeds up page-turning and menu navigation.