Ok, this is one flash game that ROCKS. It's really, fun!
http://www.nitrome.com/games/tinycastle/

This game is 550x550, so would fit very nicely on the Tab's diaplay. Sadly, I've been doing research on flash integration with Android, and it seems that's there's only keyboard support for text-fields ! This is an incompetent move on Adobe's part, as they are touting flash as an environment for web apps and keyboard support is pretty key to applications beyond text-field entry (eg. custom keyboard entry code).

Here's hoping that there's some type of extension for the Android browser that keeps the keyboard on the screen as I can also see this being a problem for javascript apps that require non-textfield keyboard entry.

Often times games require minimal keys (eg. directional and one fire button). It would be nice to have a customizable keyboard that stayed on the screen but didn't take up much screen space for these scenarios. Even keyboard 'skins' would be a nice touch (eg. a game controller with customizable keys). It would be doubly nice if it remembered the customization based on the sites URL, so you wouldn't need to select the keyboard each time you re-visited a site.

In the meantime, it seems that you'll need a keyboard in order to enjoy many of the flash/javascript games/apps on the web using your android tablet. Crappy, I know, as much of this content would be great in bed, or lounging comfortably in a chair.