I am also a maker of upmetrics.co - A business planning software, I came across ash maurya's lean canvas and i found that use full as a quick and small business plan builder. And later i thought lets build a such a tool that can digitize various business model canvases, As i explained in product description it seems to me a very good approach to get ideas out of your head and organize them on the same page along with your team. At the present i have added six different canvases in our canvas template library that can be used in different scenarios. Plan is to keep adding new canvases eventually.