Looks like Flash 10.1 will be built into Android 2.2 (to be released next week)
What little reports that are in, say that it runs great BUT no one mentions battery life, so I'm guessing even if it is bug free it's still probably suckin alot of energy... but won't know until next week.
Looks like a slew of Android 2.2 tablets will be hitting the market shortly... (a few in June and many more in July and August)
Not to mention the WebOS ones from HP and supposedly a Chrome one from Acer.
My best guess is that they will outperform the iPad AND offer a ton more functionality (FLASH, mobile hot spot, tethering, better ports, sd card slots, etc) BUT will have significantly less battery life.
What I'd LOVE to see this year is a feature rich tablet that can use Sprint's 4G... now THAT would own.... unfortunately, I don't expect to see one until next year though.