Basically running in Exchange in house will become prohibitively expensive for small businesses after SBS 2011. This is Microsoft's incentive to get all SMB users on Office 365/Exchange Online.
....... Many partners are threatening to go with third party solutions for roughly the same price as SBS 2011.
This in the face of large organizations (50,000+ users) going over to Google Apps; the hubris of usta-be monopoly. Regardless of what you think of Exchange and/or Outlook, the business math is against staying with Microsoft if you are a small business with limited money to spend on technology. For the folks who like it, want it, and can afford to continue paying for it, the licensed product will be there.
On the other hand, every practice that is replacing their aging SBS server is doing the math, and most are choosing to go away from Microsoft based on $$$. We are advocates for what the practice decides is best for them, so they decide and we implement. Even though it will mean less revenue if they move away from Outlook/Exchange, we want what is best for them.
