Can I use this scheme to help with making my Flash or other rich media files more crawlable?
Although Google does index several types of rich media files, and although we are continuously working on improving our crawling and indexing capabilities, there are circumstances under which it may be appropriate to provide the crawler with content that is otherwise not visible to it. For example, the crawler may not see all the content of your Flash application. As this is a parallel situation to dynamic Ajax content not being visible to the crawler, you are free to use the scheme described here to provide the crawler with the additional content. However, you have to make sure that your site will not be suspected of cloaking. Again, the HTML snapshot must contain the same content as the end user would see in a browser, and Google reserves the right to exclude sites from its index that are considered cloaking.
