On Sat, 13 Aug 2011 21:56:12 -0700
Matt McKenzie <lnxkni...@gmail.com> dijo:

>Since you want to connect to a computer, you probably want to
>investigate which carrier supports 4G in your area.
>Verizon is rapidly expanding its 4G LTE service, with Portland area
>supposedly being "lit up" sometime this year.  Sprint, AT&T and
>T-Mobile have their versions of 4G as well, though I am not sure of
>their coverage areas.

Verizon's LTE service has been available at the airport and Gresham area
for some time. About a month ago the rest of the city went LTE. The
theoretical bandwidth of Verizon's LTE is 52 Mbps, but in the real
world you will get 12-14 Mbps.

T-Mobile just enabled their HSPA+42 network in Portland, The
theoretical bandwidth is 42 Mbps, but the real world speed is expected
to be about a third of that. They have only one device which can use
the HSPA+42 network, a USB modem. I have no knowledge of whether the
modem will work with Linux, but Google might know something.

AT&T is attempting to go LTE, offering the same bandwidth as Verizon.
However, they are badly lagged compared to the other carriers. They
claim they need to buy T-Mobile in order to gain the spectrum
necessary to deploy LTE, yet leaked reports from inside AT&T indicate
otherwise. There is a great deal of controversy about the proposed AT&T
- T-Mobile merger.

Sprint offers WiMax, which cannot deliver the same speeds as the other
carriers. 

Having said all of that, all the carriers require an additional payment
for tethering a computer to a phone. However, it is hard for the
carrier to detect if you are tethering. A lot of people do it in
violation of their contract with the carrier. 

If you just want a connection for a computer I'd go with the T-Mobile
HSPA+42 modem, assuming it works with Linux. But bear in mind that the
Android world changes every 15 minutes. 
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