Hi,
Great program, but could the tab navigation be revamped somewhat in the future? For a quick example of what I'm thinking, try out Firefox, Opera, or even Notepad++; you'll notice that they all have fairly stylised tabs, the ability to re-order them with nice visual feedback, and if you right-click the tab bar (or in Firefox's case, left-click the icon on the far right of the tab bar), all open tabs are shown in a vertical drop-down type menu.
I'd love to see the above incorporated into WeBuilder, complete with any additional things that can be conjured up!