Google have integrated a Flash reader into their indexing algorithms to include support for Flash-based websites. The feature appears to be aimed particularly at finding the links within Flash navigation, in order to find the previously hidden pages within their domain.
I’m not sure this is such a great idea; that Flash was not indexed by Google has, in the past, been a very good reason not to make websites with Flash. (And reasons not to make websites with Flash are a good thing.)
At any rate, I like to think that websites which use Flash for their entire presentation are on their way out… hopefully this won’t affect this.