Re: G3. Was: GTA03: New case? Bigger screen!

2008-06-15 Thread Stroller

On 15 Jun 2008, at 05:54, Nigel Cunningham wrote:
 ...
 Or maybe I am just ignorant. Can you do sending
 and receiving email and so on with GSM, or is that 3G only?

GSM is fine for this.

 ...
 I'd really rather buy a Freerunner, but at the moment I'm not sure  
 what
 to do. I currently have a Nokia 3210 that spends most of it's time
 turned off and forgotten, and a Palm Zire 21 that gets wiped if the
 Nokia does something wrong (apparently not shielded that well). I'd  
 like
 to replace them both by one thing, and I want that one thing to be  
 Linux
 based and open source. At the same time, though, I want it to be  
 useful
 for a long time. 3G seems to me ignorant mind to fit that bill better
 than GSM.

I'm not sure what the big deal is with 3G.

My misconception was that GSM was only dial-up speed, but someone  
recently posted here stating otherwise. Someone debated with him over  
his terming GSM as having ADSL speed, but if it's 2 or 3 times  
faster than 56k then that's fine by me. I can do all my email   
websurfing quite happily at that speed, and since my current 3G  
mobile is painfully slow when coverage is spotty I can't see that it  
makes much difference.

As I understand it GSM *does* allow you to make a digital data  
connection, and that's the important thing.

Stroller.


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Re: G3. Was: GTA03: New case? Bigger screen!

2008-06-15 Thread NeilBrown
On Mon, June 16, 2008 5:14 am, Stroller wrote:

 I'm not sure what the big deal is with 3G.

 My misconception was that GSM was only dial-up speed, but someone
 recently posted here stating otherwise. Someone debated with him over
 his terming GSM as having ADSL speed, but if it's 2 or 3 times
 faster than 56k then that's fine by me. I can do all my email 
 websurfing quite happily at that speed, and since my current 3G
 mobile is painfully slow when coverage is spotty I can't see that it
 makes much difference.

My understanding -- and experience -- is that GSM/GPRS does provide
only Dail-up speed.

http://en.wikipedia.org/wiki/GPRS

suggests a max of around 80kbit/sec which is a little faster than
56k, but not much.

If you have EDGE support, then that pushes it up to 236kbit, which
is almost slow-ADSL.  However it is my understanding that GTA02
doesn't support EDGE.
http://wiki.openmoko.org/wiki/Openmoko#GPRS_modem
says
  GPRS modem
  2.5G (no EDGE) access to the Internet.


 As I understand it GSM *does* allow you to make a digital data
 connection, and that's the important thing.


I agree - that is in the important thing.
I used GPRS for Internet access while traveling in the UK recently,
and while it is much better than not being connected at all, it
is a long way from being a comfortable browsing experience.

NeilBrown


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