Mqurice,
The handset power is indeed a distinguishing feature between PCS and cellular. In fact, this is written into the FCC regulations that define the two types of service. Cellular handsets are allowed up to 7 Watts of radiated power, PCS handsets are limited to 2 W. You are correct that the wavelength will affect the absorption of the RF signal by solid obstacles, but actually the factor of 2.5 difference between 800 and 1900 MHz wouldn't make very much difference in that respect. (Besides, in some places the PCS band could be in a lower frequency range than cellular.)
On the immigration question, you wrote: "if Qualcomm and the USA won't, Nokia, Ericsson, Alcatel, NEC, Fujitsu, Samsung etc will!" Not! How many immigrants does Japan take in each year? A bare handful. And in the EU countries, it is very difficult to get a permanent job if you are not a European (the exception being Britain if you are immigrating from somewhere in the Commonwealth). I agree that being able to attract talented people from abroad is a good thing, but like most good things you can have too much of it. This is an area where competing interests must be balanced.
Good night,
==John
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