Rails 3 ready to use in Production?

Is Rails 3 ready to use in Production?

I know is in beta (currently beta 3), but is it suitable to build a simple app using authentication (devise)? Or should I wait for a final version?

What is your opinion?

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37signals built their Answers application using Rails 3, so by definition I'd say it's ready to use in production. Of course, your mileage may vary depending on what you're trying to do.

I guess it'd depend on your definition of "production." There are still a bunch of issues that are being worked on but it doesn't seem like there are any showstoppers.