[byama36]

I noticed the SIM card slot when I disconnected the battery from the mini12. Is that for a possible 3G connection? Any idea when this might happen?

[KubanUser1]

Yes, this slot is for 3G connection via internal GPRS/EDGE/3G WWAN modem in Mini PCI Express card form. Read service manual for Mini 12 at Dell site and you will see a pictures of modem installation process. Anyway, to use a 3G on Mini 12 you should wait a special WWAN version of Mini 12 from Dell, or do it yourself: solder to the motherboard a SIM card holder and a missed WWAN Mini PCI Express connector, install a WWAN antenna and a WWAN modem card.

Here is the photo of Mini 12 internals on which you could see a place for WWAN modem card:

[attachment=0:265mldrv]DSC_0366_s.jpg[/attachment:265mldrv]