Adobe says that their Flash Mobile app is not only faster than HTML5 but it also uses less power.
Adobe Blogger John Nack posts a video today comparing Flash 10.1 and HTML5 on the eight month old Nexus One and then compares it with the just-released iPod touch which runs the same processor as the iPhone 4. The original tests can be seen here (and I’ve run them and got similar results on an HTC EVO 4G and iPhone 4).
If the test results are legit, they would dispel the conventional wisdom of Flash being a battery hog or much slower on mobile devices than HTML 5.
Also, it is interesting to note the speed – in just HTML5 vs. HTML5 – of the older Nexus One vs. the much newer Apple product.