Re: Gadget URL  

Here's URL of Demo Wave in public preview (not developer sandbox): https://wave.google.com/wave/?pli=1#minimized:nav,minimized:contact,minimized:search,restored:wave:googlewave.com!w%252BUjP-bGzGA

teaching tool  

This looks like it will be very useful for tutoring math. Can it work with a touch screen? I

there's a write up in the sidewiki and a shared google wave  

Here's the shared wave I created to document the fun I'm having and a small wish list... this app, with an audio recorder is INVALUABLE for teachers and students. https://wave.google.com/wave/#minimized:search,restored:wave:googlewave.com!w%252B9f0Q7yL-D

Thanks !  

Just miss a gadget installer URL (extension manifest)... But anyway, this is a great work !

Excellent. Near‐zero response delay even with many objects, very reliable tools that always did what I wanted, and good selection of tools (rotate works beautifully). A square tool and a color-picker would be useful. Obviously it would be nice to drag the canvas to extend it :)