Update 2009-09-01: A new version of the Internet Channel was released today, and it has Flash Lite 3.1 (basically Flash 9) support. It looks like Nintendo and Adobe finally heard your calls for an update!
The old text of this blog post was as follows:
Reviews look very good, and people are commenting on how fast it is and how smoothly it operates. (Remember that you can continue to give the development team feedback.)
However, there is one thing a lot of people seem to be asking about:
Why didn't we update the Flash plugin to a more recent version?
The answer is simple: there is no way to do so. It is out of both Opera and Nintendo's hands.
(Update: Even if Adobe was to license a newer version, Nintendo still makes all the decisions. It is up to Nintendo to decide what the Internet Channel supports (or doesn't).)
The latest version of the Flash SDK (Software Development Kit) offered by Adobe is version 7, so that's what anyone who is not a Windows, Linux or Mac PC have to settle with. To support Flash on a phone or device, you have to license the Flash SDK from Adobe, and as long as they do not provide a more recent version, there is nothing you can do.
If Adobe had offered a more recent version, no one would have been more thrilled than us. It would have made more sites work, and that would lead to less frustration to our users.