Adobe today has finally made Flash 10.1 an official release. It had been in "release candidate" status since April of this year and it was in beta form since last November, but now it is finally official. Flash 10.1 enables hardware video acceleration on supported platforms though Mac users will have to wait for the "Gala" release before they can enjoy that element. "Gala" can be downloaded in "release candidate" form with the final version coming before long.
You can download Flash 10.1 directly from Adobe's website for your Windows or Mac computer and from the Android Market on your Android 2.2 device.