Ok, time for me to either shine or fall based on my COOL inside knowledge.

The 'table' utilises all of the current Dungeon Tiles products as well as will incorporate future products.

Outside maps seem to be limited to mostly a topdown view of the current D&D Miniature maps. I would not be surprised if some sort of means is provided to allow someone to scan in hand drawn maps.

As to the minis, I know that all of the miniatures that will initially be provided for the table will be the same miniatures as those found in the current Dungeons of Dread D&D Miniatures in Stores now. These minis are the first of the new line of minis to be produced from 3d Art software, and so will all future miniatures. This means that at minimum, the miniatures for the 3d table will be updated three times a year with 60 more miniatures. I do not know if the old miniatures currently out will be scanned in or whatever.

The system looks cool, but is not something I personally would use.