The Ghost
Explorer
I'd guess in about a year, if ever.
Frankly, there is one thing I've never understood about some of the anger over this (actually more than 1 thing, but I'm trying to focus here): why do some people feel 4E can't be played, or is somehow missing something, if DDI isn't there? While I understand that it was promised, no other edition had that level of virtual support, and this one does not need it to be viable either.
Actually, for me, 4E cannot be played without the game table up and running. The main reason I had bought into 4E when announced was being able run games online with friends around the country. My local gaming group prefers 3.5E.
The longer it takes for this feature to come online the less likely I am of embracing the entire project. What is the point of investing in any more books or Dungeon/Dragon without the ability to fully use the products?