I don't fully agree with this analysis. I'm one of the first users of Zoho, and even if they were functionnally in advance, they had too much bugs to be used seriously for a real business. Google is working hard and they are on the path to be better than Zoho on a lot of modules, with the guarantee of quality of service. But I hope Zoho will have the energy and the financial background to compete with Google, because competition is the best driver for innovation.