Screenshots, of course
There is no site about a GUI without screenshots, so here we are. They are really no big deal, since you can find the same two images in the quickstart document, but I plan to come up with more (Linux and MacOSX screenshots would ve very appreciated).
So here we go. First of all we have the Toska main screen:
This screenshot shows a filled-up tree, together with the "New SSH Key" panel.