but, having a better processor means that your phone will be able to manage the full potential of the 3g tech and yes, gaming and other app's will be better.
I think that there maybe a few cell phones using this like the next gen of the nokia N series where the phones are big and have large batteries. but these atom processors will largely be used in devices like the HTC and Asus eee pc.
you must remember that although the watts are low, they are to high for your current cellphones, but say in the next year or two, batteries on phones will be able to run these processors.
why I said this would help the communication sector is because look at my Sony E k850i,
it's a great phone and all, but I can't really get amazing data speeds (no where near the 3.6gbps) because the processor on my phone simply can't handle it.