Reynard said:"Options not restrictions" is, in fact, the most beneficial mantra for designing a new edition of D&D. What I don't understand, though, is how it can have become so hollow.
It was the mantra for 3e as well -- though I think it was phrased as "consequences, not restrictions". Wanna wear plate armor as a wizard? You can -- but it hurts you.
IAE, 3e offered far more freedom vs. 2e than, it seems, 4e is offering over 3e. This might be intentional -- freedom is hard to balance, and even harder to code into an online tabletop that is supposed to be released in six months and which is, so far as we can tell, still vaporware.
Anyone who remembers the character generation program which came with the first 3e PHB, and what was *supposed* to happen to it, and what *didn't*, will probably be justifiably wary of the success of the Digital Initiative which is supposed to be a main selling point of 4e. We have been there, and we have done that, and we have bought the T-Shirt. (Hint: Everything they're promising for DI? It was promised for 3e -- 8 years ago.)