While switching tabs (i.e. ctrl + tab & ctrl + pgup) I often loose track of where I am.I think it would be nice to have the current tab to be highlighted in some way, perhaps with a brighter border or background.
Current tab is highlighted, but it is very subtle. More contrast would probably be nice... I personally modified the PNG files in the theme directory to increase the brightness of the active tab.
Yes, but if you are using multiple panes, both have one active tab and the only way of figuring out which one has focus is to look for the cursor or similar. I forgot to clarify that.