Creative has selected Opera as the default browser for their Plaszma OS powering the upcoming Zii EGG. One of the reasons they have chosen Opera was for its “Web application” platform to make it easier for developers to jump right in. This is what Archos did with their last generation of devices such as the Archos 5. Honestly, the web applications for Opera in the Archos 5 were far from impressive; however, it could have been from the lack of developer interest.
Keep in mind that they are only talking about the Plaszma OS and that the Zii EGG is wide open to other OSes such as Android. Partners can still select whatever browser or OS they want and brand it accordingly.