Hello,

Can you please tell me if the Sony TX laptop series of computers that
come equipped with the edge network connectivity, are network locked?
ie will work only on Cingular, if i bought one would i be able to use
the data function on another network and in another country?

Hello,

The Sony TX laptop series with the edge network connectivity are not
network locked. Yes you will be able to use the data function on
another network as well as in another country.

The other question is whether it can be upgraded to UMTS?  And will it
also word with CDMA Carriers?  I am afraid that it will only work on
GSM Carriers and NOT Verizon Wireless or Sprint.  Upgradeability to
UMTS is very important!
Thank you!  Anyone have the Answers?

The TX 651, which Sony no longer carries on their webstie, was the
only model that was not tied, at least in the first instance, to
Cingular.  What little research I did led me to believe that you could
use the 651 with Verizon which is cheaper than Cingular and apparently
better.  I could be wrong on this.  I e-mailed  Sony and never got an
answer.  The 651's are still available.