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11-01-2011, 12:23 PM #41
iPod Touch 4g + iOS 5.0
Not using an iPhone(4 or 4s),
not seeing any excessive battery drain,
BUT I'm definitely seeing some differences in time setting with 5.0.
The iPod (presumably iPhones too) has a rather lame internal clock,
and it drifts by about 1 second per day (+ .89s or so).
on iOS4 it syncs time with iTunes, but intermittently and semi-randomly
so that I find I need to manually sync (e.g. with ntpdate) every few days to keep it in line.
on iOS5... I have never seen it drift more than 1s off.
Something is definitely synching, and synching much more often than before.
And I can't find any user-interface or plist setting to control this behavior.
Not a problem for me, but I guess if there were a 3G radio waking up and hitting up time servers
it would be a serious power drain. Possibly the "auto-set time zone" makes it even more hyperactive than default.
11-02-2011, 03:57 PM #42
I bought a dang phone because it HAD these features.