Various other products have close buttons on their tabs, especially the tabbed browsers (such as IE7 and Firefox). I happen to use Avant Browser a lot (it's an excellent shell for IE), and it has a configuration option such that you can have the X on each tab or only on the active tab. I prefer the latter, but some will prefer the former.
UPDATE #1 ... I just discovered by chance that you can close a tab by clicking on it with the mouse centre button (scroll wheel), which is faster than selecting "Close" from the context (right click) menu on the tab. Various browsers now use centre-click to do the same, so it's silly of me not to have tried it beforehand. All the same, it's not as obvious as an X on the tab, so my suggestion still stands.
Cheers, Tony Austin.












