With your phone connected to itunes, right click on your phone then click on reset warnings. this usually makes the back up quicker. The warnings are what itunes sends to apple, however has been known to go corrupt and take ages for your phone to back up.
One other thing, as far as i am aware, a back up will only save your settings, photos, sms, etc. Your music & apps are taken care of during the synch.
For instance, just the other day i loaded ios4 on to my missus's phone and ended up wiping everything. I lost over 800 photo's and believe me, she wasnt too happy that evening.
My mate showed me where the backups are stored (edit -->Preferences --> devices). I think this is the same place where you can change your settings.
p.s., i may be wrong also
just seen uno's link, so it is the correct place.
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Speedtouch 585v6 7.4.3.2
in use on
AOL llu
Buffalo WBMR-G54 back up
www.itv1hd.com
Edited by Mitchy_mitch (Mon 21-Jun-10 15:28:53)