(keitai-l) Question

I have a perhaps naïve question - Re: the 3G 2mbps mobile
service that will be introduced in 2002 in Japan?
Specifically, I have heard that this is a "shared" 2 mbps.
Can someone explain what are the implications of that for
the actual effective data rate that will be available to
users?  Furthermore, what will be the data rate of the
uplink?

Thank you

Dan Isenberg