Yeah that was ages ago, but they were still feeling the effects of that transition in work that needed to be rectified for the tablet. This is work that would have been done without the tablet project anyway, and was started before the tablet project was even announced to the public.

But you can't just increase the DPI on a UI designed for one handed phone usage, slap it on a tablet and call it a day. Well I guess you could, but I can understand if they thought they could do better than that.