Seth Godin has a great post up about how Verizon turned down partnering with Verizon for the iPhone.
"The iPhone/AT&T deal is almost certainly the exception that proves Godin's law of bizdev: No is the default answer. The spreadsheets and the marketing team and the CFO and the lawyers have no trouble at all defending the status quo, because, it's their status quo. They created it and they like it that way. Bizdev deals like this almost always fail because the potential for upside seems too small compared to the mammoth disruption that organizations imagine will beset them."
When dealing with new and innovative technologies that change the way businesses or people are doing things it is easy for the people that will be effected to say no for the reasons that Seth talks about.
Hat Tip to Seth