Flash 10.1 is available in Android Market now!. If you're running a device with Android 2.2 Froyo and don't have Adobe Flash 10.1 Mobile yet, you can head to Android Market to download the latest Flash, which will give you access to most of the videos, games, and interactive Flash-based content on the Internet.
Depending on your device and your operator, you may have already received Flash as part of the firmware OTA upgrade, like the EVO 4G, which was the first device in the U.S. to get updated to Android 2.2.
In the case with Verizon Wireless with the original Droid, the OS update is now being pushed out for that device to get to Android 2.2, but the OTA firmware upgrade does not come with the Flash package built-in. Rather, the carrier is advising users to head over to Android Market to get Flash installed.
If for whatever reason you don't want to install Flash from Android Market and you are running a supported device, then you can head over to Droid-Life to get the update.