Why does Siegler comment on technology he doesn't understand? The holy grail of mobile development would be a minimal runtime that would work on all the mobile platforms which developers could use to factor out the common base of their applications. Something like a native webkit with some kind of sandboxed privileges giving the illusion of a native OS. Currently the only thing that comes close is html/javascript and I know android has a way of bridging Java and Javascript code and wp7 also has the same capability except with C# and Javascript. WebOS is all basically javascript so there is nothing to worry about there and I can't comment on iOS but I'd be surprised if they didn't offer similar capabilities. I think at this point it's a little too soon to make comments like Siegler. The space is still young and developers are still figuring out the proper way to do cross-platform mobile development.