Duh. But with Apple's anticipated Tablet [Update: iPad!], Google's Nexus One phone and any number of other shiny objects to distract us, it's easy to forget that even the most massively successful of these platforms—the iPhone—has maybe 60 million users, whereas the web has about 1 billion.
Maybe this is why the Nexus One's tagline is "web meets phone," and why even though few really know what capabilities Apple's long-rumored tablet will have, it's a safe bet it will feature a great web browser just like the iPhone does.
The simple reason is that the web is simply too big for even the biggest device makers to ignore.
Which is very good news for those of us looking for the best ways to reach large audiences with digital content. The fact that all these great companies are coming out with more great devices just means more ways for users to access the content we serve.
As long as open web standards prevail, those of us who stick with them don't really have a horse in this race. In fact, just the fact that there is a race means we win.