Andrew, if there is any way at all you can expedite those 7.3 milestones, it would make Dolphin Pro a very good, Modern product. Those milestones are urgently needed, and six months will seem like an eternity to me. Just give AlexT and AntonL a big cash incentive bonus.... they'll get it done in half the time.

Now about memberships and paid support, especially the $100 per month option. Some folks around here may hate me for saying this, but for that paltry sum, it would make good business see more sense to limit the number of hours of priority support you provide for that sum. If you don't, sooner than later, someone will come along and turn into a time vampire that sucks the life out of you. You can see this in the forums on ocsasion, when some new guy needs to be 'spoon fed'..... they need their hand held at every little turn. You can't let yourself get into the situation where one or two people consume 80% of your available time. For that price, a minimum of one hour of priority support and absolutely no more than 4 hours sounds about right to me.

Whatever you do, you need to structure the support very carefully, and have a very efficient process in place that is fair to both the customer and yourselves. Fixed prices need fixed limits, especially when your time is involved.