I plan on posting a short piece on Nintendo's slow switch from releasing Revolution "with or before" their competitors to releasing "in the same time frame." Here's the lastest refinement from Satoru Iwata in the same Spong.com interview I mentioned earlier:

“And of course, I cannot comment on when we’ll begin selling the Revolution. But I believe that our target audience is totally different than that Sony is aiming at with the PlayStation 3. And therefore slight differences in launch timings will not be very important. For example, if we were to launch a month sooner or a month later, I really don’t think it will matter a great deal."