I see devices sold all over the place that claim they can backup the contacts on a GSM SIM card, but since AT&T is now using HSDPA SIM cards; would these devices work the same? When I asked AT&T about this, they told me about their Mobile Backup service (Which Is Being Turned Off Completely Soon). So even that option is not really an option anymore.
So would a GSM SIM card backup device be able to access the more advanced 3G cards?
So would a GSM SIM card backup device be able to access the more advanced 3G cards?