I fully agree. This is why I can't stand using Meebo unless I absolutely have to. The app itself is amazing for what it does, but in no way will it replace my dedicated desktop AIM client.

Most web-apps that emulate a desktop app are still clunky and nowhere near as smooth to operate as their desktop counterpart. Meebo is one example, and all the web "desktop replacements" are another. You're always waiting for something to load, or javascript doesn't resize the window properly, windows that get dragged around don't move smoothly, etc.

But wouldn't it be awesome to drag a window generated within a webapp and toss it some place onto your desktop? (to the degree that the browser is just an extension of the OS -- kinda like a file explorer with more features)

Yup... or being able to upload an image into a rich text editor by dragging it from your desktop or other folder.

It's these kind of intuitive things that I love. The only problem is being able to guess what is intuitive to whom. Else you'll end up with a ton of features that no one ever uses (read: waste of money).

Many web apps are SLOW.