… and you didn’t even have to change anything….. Adobe announced that it has provided Yahoo! and Google updated Flash player technology that allows them to search into the contents of your .swf files without any code changes on your end. Now the specifics are not mentioned, like can you still block this search if you wanted via robots.txt, etc. or if Yahoo! and Google are even using the tech yet.
"Search engines already index static text and links within Shockwave Flash files, but rich Internet applications and dynamic Web content are elusive to search engines because of their changing states, Adobe noted. " [Source]
But there are a lot of site that use flash and so this will probably just help validate their choice of choosing Flash tech in the first place. One of the biggest complaints of Flash has been how it for the most part is invisible to search engines.
Adobe is also embracing the SWFObject 2 detection method which is a open standard method with helps make the flash detection method consistent for all users.
Google code: Site for SWF Object 2 (with detection file downloads, config wizard and documentation)