I'm not going to add any new real features just yet, so as I said I am concentrating on making whats here work.
It will then go into extras.

I know theres a problem with loading sketches saved at one resolution into the editor using a different resolution and think this must be cured before I can push it properly.

I have centralized all the styles now and am pondering how to switch them on without making a mess, you should be able to draw your own UI elements and share them with others.
However everytime I think about this I envisage a tree of the UI structure and want to get on with the UI designer I long for - its annoying personally to draw a UI and then have to take my drawing and convert it manually into a working screen.

Then there is the image saving problem, I still haven't sat down and wrote PNG export but when I do I've got a bunch of tiny screens planned to make full use of it, things like postcards and contact introduction screen and even things like user login/selection dialogs and stuff.

Once the simple blocks are in I can start motoring.