If there is one thing that we know, its that even platforms that are dead keep a notable userbase for a little while before completely folding. So to answer the question about the value of Symbian, see this post by Horace Dediu (and for context, see his previous post): For a help, here's one of the graphs he's posted. This isn't PalmOS Classic, and Nokia will have a lot more to transform than they announced. And yet, there's literally a few hundred million folks who do well for a software or service solution until they feel like upgrading. For developers (and users) to miss on that apparent value is indeed self-inflicted suicide.