You're exactly right. I should restate I mean '1.0 final' so we can say we are out of beta and anyone that buys it can know they're now getting something that has no problems with it.
In my view, that's more about the "Crossing the Chasm" transition from rabid early adopters to the early mainstream market. In your shoes I'd interview various potential customers to see what each group considers must-have features, and listen carefully to any early mainstream people that have used your current version.