Hey,
as usual you can't tell from the user-agent which iphone model you are
dealing with. in the past i used a simple 20ms benchmark in javascript to
distinguish between 2g/3g and 3gs. the idea was formed in a discussion in
this very group here.
var percentmobile_t=new Date().getTime();
var percentmobile_s=0;
while(new Date().getTime()-percentmobile_t<20)
{
Math.random();
percentmobile_s++;
}
var model=(percentmobile_s>1000)?"3gs":"2g3g";
this worked well and i expected to be able to do something similar for the
new device. didn't work. within the 20ms both create between 1500-2400
random numbers. i tried creating some other objects such as images or DOM
nodes, but same thing, the browser performance is not distinguishable. does
anyone of you have an idea what else to try?
i was also trying to do it by detecting the new display resolution, but
without luck. i always get 320x480 and never 640x960. is there any way to
get to the 640x960 in javascript?
disclosure: i am co-founder of percentmobile.com, a *free* mobile web
analytics solution and we used the methods like the one above in the past to
differentiate between models.
thanks very much,
stan
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