According to the official Google blog, Google are now starting to index Flash websites:
Google learns to crawl Flash
6/30/2008 09:26:00 PM
Google has been developing a new algorithm for indexing textual content in Flash files of all kinds, from Flash menus, buttons and banners, to self-contained Flash websites. Recently, we’ve improved the performance of this Flash indexing algorithm by integrating Adobe’s Flash Player technology.




