I'm not sure about this idea. I think the problem with existing web-based Office substitutes isn't a problem of segmenting the market -- the problem is that th

I'm not sure about this idea. I think the problem with existing web-based Office substitutes isn't a problem of segmenting the market -- the problem is that they're just not as good as Office. In particular, they're slower, uglier and always seem to be missing some of everyone's favourite features. Office isn't perfect, but it's almost always fast, and it has a lot of features. Get the implementation right, and you've got a great Office competitor. But given the limitations on the speed of a web-based application I'm not convinced it's possible (but keen to be proven wrong!)