I overclocked min-max to 1.15Ghz and watch Youtube in 360p and it's very smooth for some videos. But it gets hot after awhile so have to watch out for that. But i can watch it w/ min-max 500Mhz-1.15Ghz. As far as surfing the web without flash...it is super smooth...and it wouldn't get hot. I normally just use overclocked from 500Mhz to 1.15Ghz and everything is fine. Never have to restart or anything. You just have to test out which profile fit your device. If this device have hardware acceleration....it'll be smooth in watching flash video....but then it'll probably get too hot. I think that's why they don't recommend going over 240p youtube format, maybe cuz it gets hot. I don't know...watching flash video is using too much resource even for PC!! That's why i guess Steve Jobs dont' want it for iphone.