Lost in the noise around the iPhone 3G launch at Apple’s Worldwide Developer Conference is the quiet announcement of OS X 10.6, code-named “Snow Leopard.” AppleInsider reports that Safari 4, the follow-on to the version of Safari in Leopard, will have a feature that allows users to “save a web site” as a stand-alone browser instance. That is, in essence, what we called a “single site browser” back in February of this year.

In our April 4 research note From Anywhere to Somewhere: Single-Site Browsers Keep Users Safer (available to Yankee Group subscribers), we recommended that Apple integrate SSB features into the core browser. We wrote that “creating individual, isolated browser instances for web sites should be as natural and intuitive as creating bookmarks.” I’m pleased to see that Apple will be doing exactly that.

Although I can’t claim with any certainty that our research had any effect on Apple’s product roadmap, it’s nice to see them doing this. And it’s good to get one right every now and then.