I don't support ND7 because I don't personally have an ND7 license, and won't until I have a paying customer actually using that platform (sorry, but that's the economics of Open Source). My customers are currently on ND6.54, and so am I.
OTOH, I see no reason at all why the ND6.54 databases here wouldn't work without modification on ND7, and that doesn't prevent anybody else from providing direct support for customers on ND7 (in fact, that's one of the beauties of this project… you can take it and re-sell it or provide third party support as you like. By all means, make money off of this for yourself).
I myself would be happy to provide a year's support for the price of an ND7 upgrade for my development server and client. By this I mean that I scratch your itches instead of mine… your bugfix requests move to the top of the list. Customizations are negotiable and depend largely on what you want customized and the extent of the customizations.
– Dave.