UIs of the past

Why would anyone releasing an IDE style application in 2007 still use a Windows 3.1 style MDI interface with a “Windows” menu complete with “Tile Horizontally”, “Tile Vertically” and “Cascade” and no other way of displaying two documents simultaneously? It’s not 1994 any more.

All I want to do is edit the CSS source while referencing the HTML. If I were using a tool with a useful interface, I’d simply click the tab for the CSS file, and drag it to the right hand side of the editor area where I want it to be.
But no such feature exists in Dreamweaver. In fact, the only concession to modern interface design on Adobe’s part is the fact that there are tabs when the documents are maximised (which must have taken a programmer a whole half hour to implement).

So instead I have to “tile” the documents, which is ugly, wastes screen real-estate due to the overhead of window decorations, and makes later management of the child windows painful as you have to manually resize each one individually.

Bah!