[Geowanking] iPhone Geolocating technology?
mikie at iki.fi
Thu Jan 11 00:47:16 PST 2007
stephen white kirjoitti:
> On 11/01/2007, at 3:06 PM, Kevin Elliott wrote:
>> I understand, but many areas are picking up EVDO, and UMTS/HSDPA. Many
>> countries are participating in the program. Sure, this iPhone will
>> WORK on GPRS/EDGE, but don't expect total enjoyment of downloadable
>> music and video. Since this is suppose to be the ultimate ipod w/
>> phone that consumes network, shouldn't we be able to use a 3G network?
This of course has little to do with geolocation, but after a couple of
years of major frustration with trying to build IP-based applications I
just need to vent:
3G/UMTS is nowhere near working! Moving around in central Helsinki, an
E61 drops the network fully or switches between 2G and 3G (dropping TCP
connections) every few minutes. Establishing calls may take 5 tries.
Moving outside central urban areas, an N80 will constantly try to
connect to a 3G cell, fail, connect to a 2G cell, notice there's a 3G
cell available, try to connect, fail, repeat. The phone heats up and
kills the battery in about an hour.
Sending a few packets of data every few minutes kills most phones'
battery in about 8--12 hours on 3G. The same amount of traffic per time
unit on 2G (GPRS) allows 2--3 days of use.
So neither the network nor the GSM chipsets is up to the task yet. I
think the people pining for 3G at the moment are not actually using it
for anything real.
So from a technical/usability POV, I fully understand Apple's decision.
They'll have time to come out with an UMTS model by the time the
technology works. From a marketing POV, it of course may not be a great
idea. I would love our users to stick to 2G, since they'd get a much
better user experience.
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