I spotted an interesting paper on opportunities for partners on our partner site. It gives a decent summary of our S+S strategy (which combines the best of on-demand with the best of on-premise) before then talking about the impact and opportunity for our large partner base - both VARs who traditionally make money from on-premise installs + maintenance and ISVs who traditionally sell on-premise. Definitely worth a skim including a number of case studies at the end which talk about how real companies are approaching S+S.