I think he is asking for a spreadsheet grid that can be databound to other sources.
C2 is game tool and what you ask for could be used in games... are certainly for more in the domain of data apps.
If your going the app route and avoid canvas. You can go and use a js implementation such as http://flexigrid.info/... I have a pure CAPX implementation for FGL just to prove it could be done. Some one could do other such tools.