So assuming we're talking about 37 Signals only, I'd still offer the rebuttal that claiming obsolescence because of a lack of native app is a stretch. It's hype

So assuming we're talking about 37 Signals only, I'd still offer the rebuttal that claiming obsolescence because of a lack of native app is a stretch. It's hyperbole. Yes, there is a vocal community of users who want a native app, but what are the costs associated with building the native app? Would 37 Signals see any substantial benefit by releasing a native app? What percentage of their user base are dissatisfied with the mobile web app? There are a vocal community of users that want Flash on their iPad/iPhone/iPod Touch. There are a vocal community of users who want a Facebook iPad app. Apple and Facebook aren't on the path to obsolescence because they don't bend to the whim of their users. In order for something to be obsolete, it must be operable, but unused. To be on the path to obsolescence, one would expect a decline in use. That's pretty hard to prove in the case of 37 Signals, because they don't publish user-base numbers. Or maybe they do. Does anyone have a source for this information?