Which ascend d do you mean? there are gonna be 2 of them. There will be the ascend d1 and the ascend d quad. Out of the three of them the d quad will be the best, but the d1 will probably be the best deal (unless you want your phone specifically for the graphics and pic quality.) the difference between the d1 and d quad is that the d quad has a quad core processor, whereas the d1 only has a dual core. Other than that they are exactly the same. The only real difference between the p1 and d1 is the SUPER AMOLED screen on the p1, which adds some extra to the price. I think that the d1 is the best deal for a moderate user with no need for 4 processor cores. Thats the one i want anyway.