Is this really how it works? I know many do go solely with the -webkit or -moz property name to experiment with new features but for any site that's important (not an experiment, needs decent cross browser support) what I see happening is that most developers will do it the right way - they'll use all the available prefixes and end with the eventual standard property name while at the same time ensuring that use of these new features doesn't look completely broken in browsers that don't support the prefixes or non-prefixed version.

It's very rare that I'll see a developer code in such a way that they totally leave out a fallback or code with just one browser in mind. At least not when it comes to any site of importance (these include any site meant for a large audience, non-techies, business, and just generally not a site put together purely for showing off the uses of an experimental feature).

I didn't know Blink was going that route too. I fear that the use of new experimental features will stagnate if Chrome becomes too popular among non-techies.