OpenMoko/GTA01 project advice

Giles Jones giles.jones at
Sat Jul 28 01:35:26 CEST 2007

On 27 Jul 2007, at 23:56, Nelson Castillo wrote:

> We didn't know about CSD. Good. We are not trying to avoid any  
> cost. We
> just care about the latency of the GPRS link which renders it  
> rather unusable,
> at least in our country.
>> As a mental model, you can think of the Neo as an Linux/ARM based PDA
>> with an embedded GSM modem.

Latency is a problem with TCP/IP over wireless. You can do a few  
things to try and improve this, adjust the window size etc.. if you  
are losing a lot of packets then you want retransmissions to be small  
chunks of data and not large ones.

I'm sure there's plenty more you can do, plenty of information around  
on the web.

You also mentioned hardware? if you can't wait for a Neo the Palm  
Treo 650 will boot OpenMoko, the screen is a bit small however.

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