Display-wise, this is going to be king of the hill until someone figures out how to get a Retina-quality IPS display on their phones. I would take Retina over Super AMOLED, but Samsung has a monopoly on Super AMOLED for quite a while into the future, and hteir phones are going to be the only ones that have it. I don't know if any other company is going to be able to get an IPS LCD that is as good as Apples while also being 4+" in size. For one thing, they will be very expensive and will probably experience shortages as all the different manufacturers clamor for them.
As for the CPU, the GS might get beat in the Spring, but not before then, and these processors are going to be pretty power hungry and more expensive to manufacture.
A new "superphone" with a 4" 300dpi IPS display and a dual core snapdragon will be big, expensive and power hungry. Basically, not something I would want to buy.
I am curious to see whether 28nm phone processors will be available by next summer, and whether Apple will be able to use one in the next iPhone. Something tells me they will just use another 45nm CPU and not bother to upgrade their A4 much at all.
Edit: Global Foundries will probably not be manufacturing at 28nm until 2012, which probably means that I am right about Apple not doing much with the next iPhone CPU.
Or maybe not. TSMC is supposed to be shipping 28nm right about now, designed for mobile applications.