So far I think they're not fully taking advantage of the platform. That's probably because this is an emerging technology and developers are still getting their heads around what the technology is, and what it can be used for, what it's value is, and what the best practices are, what the patterns are for building these sorts of things. But at this point we primarily see Rich Internet Applications as still residing within a Web browser and delivered over http to a Web browser, to put a new face on existing Web applications. And that's a fine use. And it does allow users to express the way they want to interact with data a little bit better than a long series of html flows can. So we see things that used to be a dozen or maybe twenty pages of html forms in succession replaced with a single interface that doesn't require these page refreshes. Complicated interfaces such as Web mail clients are good candidates for today's existing RIA's where you really don't want to replace or necessarily augment any of the functionality in a Web application, but you need a better interface, so that users are better able to make use of what's available in those Web apps. So, while I think they're not stretching the platform, I think developers are just getting their feet wet in the comfortable browser-based setting they're familiar with today.