I went with No. I'll buy them when they are released because while it does indeed sound like they're reinventing the wheel somewhat, I like the sound of the game being designed, regardless of whether it's "true D&D" or not - having said that however, I feel that perhaps
I haven't decided whether I'll buy them or not. might not be somewhat more accurate a response - I plan on buying H1 in April when it hits the shelves (and I loath published adventures generally) and unless that elicits the frowny face of doom, proceeding thusly to the PH and so on in like order.
In all likelihood, I'll be picking up the three core books and (if 4e doesn't make me want to flush my head down the toilet) probably the 4e ECS next year. (Again, not much for published scenarios generally and I'm allergic to the Realms thanks)
But this is all theoretical. I want to see the thing first before I give them my money.