I came across this today. Had a quick play and its alright. I like the controls to insert pictures, move and rotate them. Shown here is 12Rounds latest top down figure. This app does SVG the vector format and you can draw with it and then edit the code.

http://svg-edit.googlecode.com/svn-h...vg-editor.html

Well I would show here if the site would allow me to upload the pic.