I oc'd mine to 1ghz, also raised the minimum to 250mhz. so far, no crashes or instability, but the speed increase is noticeable. For flash video speed up, i disable wlan power saving, together with the overclock it's a LOT faster, but consumes battery on a much higher rate. Wonder is there's an app for turning off wlan power saving when browsing flash and enabling it after closing the browser.