Again, I hope - and if I weren't an atheist I would pray, that you are spending no more than 20 percent of your time on this. D7 is still now where near being finished - you haven't even caught up with the functionality that D6 had yet. There aren't even builders for most of the pages, for example, and the ones that are there are incomplete. One good move you made was adding the Page Access Control mod to the product. Make a few more deals like with other commercial mods, and you could have see more a world class product. I would either make deals for, or develop yourself, better mods for email alerts - absolutely critical unless you want a dead site - groups, classified, sites - anything you can do to add better functionality.