Hulu Plus, a premium Web-based video streaming service, is now available to the public. Rob Wong, product director for Hulu Plus, made the announcement Thursday on the company’s blog, saying the service is now available without need for an invitation. Hulu provides a service that allows users to stream movies and TV episodes for free to computers. Hulu Plus, which costs $9.99 each month (for the time being, at least), offers enhancements such as additional content and the ability to stream to more devices like Apple’s iPhone and the Sony PlayStation 3. Rumors suggest interest in Hulu Plus has been minimal though, thanks to widely available free content as well as subscription competition like Netflix’s Watch Instantly. Hulu claims to have had a successful closed beta period, however, and it will continue to expand the service to more devices during the current open preview period.