In WindowsDevCenter, we take our first in-depth look at Longhorn this week, and even though it’s not yet even beta software, the biggest disappointment for me so far is Internet Explorer. The problem isn’t what Microsoft did to Internet Explorer – it’s what Microsoft didn’t do to Internet Explorer.

It didn’t give the browser tabs.

If you’ve only used Internet Explorer to do your browsing, you might not even know that browsers even had tabs. They make it easy to browse multiple sites simultaneously, and switch among them with a mouse click. Netscape has them. Opera has them. Mozilla has them. But Internet Explorer doesn’t, and if the Longhorn preview holds, it won’t have them several years from now, either.

I know this isn’t earth-shaking. But I find tabbed browsing immeasurably easier than browsing without tabs. It would be a simple bit of code to add in. The world wouldn’t end. People wouldn’t go running in fear away from their computers. It would bring Internet Explorer into the modern world.

For whatever reason, for now tabs don’t seem to be in Internet Explorer’s future. That doesn’t mean you can’t take advantage of them, though. Check out this article to find IE shells that offer tabs and more.

What do you think of Longhorn or tabbed browsers? Let me know.