Can you comment on compatibility.

For example, if I decide to buy VMware Fusion for a team of 6 developers today (Professional costs 45 EUR*6 = 270 EUR).

Will I have to spend the same amount each year again or are you going to support each version (and potential changes to the APIs) down the road? I have no idea how drastic changes are going to be from Fusion 5 to 6 and beyond.

From reading your announcement, it seems like your plugin is a one time fee. I've seen other companies try this business model for software only to replace it with a yearly license down the road. Any thoughts on this?

Does the email support include a response time, etc.?