[yurisagalov]

My macbook goes absolutely nuts when I watch even a 2 minute flash video -- CPU usage spikes to close to 100% as the fans try to compensate by ramping up to a speed that makes watching the presentation without headphones unbearable. Adobe definitely has a lot of work to do on Flash on OSX :(

[slig]

I saw sometime ago a video that a guy opened up a flash video on the os x and then the same on a virtual machine, running windows, on top of os x. The cpu use on the latter was negligible.

[rayval]

I don't know what you have running on your Macbook, but I have two Macbooks, one new and one about 2 years old, and my kids watch hours of Flash videos and Flash games until I have to wrestle the computer out of their hands because it is bedtime.

This "30 minute battery life" smells fishy. It is a friend of friend of a friend who woke up one day in his hotel room with his kidney removed and his iPhone battery drained.

[ubernostrum]

I loaded up this classic video in Safari:

http://www.youtube.com/watch?v=XsSHlCDIzNg&feature=relat...

and watched the resource use. While the video was playing, the minimum CPU use from Safari was 48%, with frequent spikes above 60%. As soon as I closed the tab, CPU use dropped to about 2% and stayed there. On a laptop with a full charge and power-management profiles to optimize usage you can get away with this; on a power-constrained mobile device you most certainly can't.