The two just don't fit together. Unless someone behind the scenes actually manages to make it sleek and appealing, I'd rather buy myself an iPhone and a PSP seprately.
The gap is very close between the two of them currently, though I recall McCain as having a slight lead. It would be interesting to see who actually wins it in Pennsylvania though.
Hard to say, really. Liu Xiang has the determination, but a foot injury like his could affect his speed or something else. Also, with such a short amount of time, the odds are stacked against him. It's more likely for him to participate in the 2012 olympics.
Yes, it IS possible that an iPhone nano may be introduced, but I disagree with the timing, and with some factors. Considering that the larger iPhone is currently thicker than an iTouch, compacting it even more seems a bit difficult. Also, the appeal to a smaller version of the iPhone seems to be less to a consumer like me. I may not be representing the opinion of every consumer, but this is just my opinion.