I think there is an important difference between Gedit and Firefox or Nautilus. With Gedit, you aren't opening a new tab that is blank. With CTRL+N, you are creating a new document. With CTRL+T you are opening a blank tab with which to view a URI. There is no concept of opening a blank tab with no document in Gedit, as a tab with no text area would be nonsensical.
Every other platform does things this way- CTRL+N means Create -N-ew, and CTRL+T means Open New -T-ab.
In my opinion, Nautilus and Firefox should have the same behavior with CTRL+T and SHIFT+CTRL+T. But Gedit should be left alone.
I think there is an important difference between Gedit and Firefox or Nautilus. With Gedit, you aren't opening a new tab that is blank. With CTRL+N, you are creating a new document. With CTRL+T you are opening a blank tab with which to view a URI. There is no concept of opening a blank tab with no document in Gedit, as a tab with no text area would be nonsensical.
Every other platform does things this way- CTRL+N means Create -N-ew, and CTRL+T means Open New -T-ab.
In my opinion, Nautilus and Firefox should have the same behavior with CTRL+T and SHIFT+CTRL+T. But Gedit should be left alone.