Question about making ajax crawlable

[Marfola]

I have an ajax based website. I use the hashchange plugin to manage the history and bookmarking. I've created static pages for all my ajax content. My site is well indexed in google.

I've researched google's solution for making ajax crawlable.

Is it really wise to make the move? Will the google solution improve the indexation of the my ajax cotent beyond what is achievable via static pages?

What about indexing in Yahoo and Bing? Do I need to maintain static pages for those search engines.

If I serve both #! and static pages to search engines will that be considered duplicate content?

[tedster]

As far as I know, no other search engine currently supports the "bang-hash" syntax for Ajax. If you have a solution that's working by creating cached pages with static URLs, then I don't think it's wise to change over right now.

I work with one site who is considering the #! syntax for their Ajax calls, but their infrastructure is so complex that their workaround is only getting 20% of their Ajax content into any search engine's index.