I noticed the Sim card slot under the battery, is that implemented?

What are the maximum capacity's of the SD slots on the side and rear? Can cards > 32GB be used?

The sim card slot should work if you have a Smartbook with a 3G modem installed. otherwise it isn't connected to anything.

I don't have any SD cards larger than 4GB at the moment but I would guess most SDHC cards will work fine in the left hand slot. the rear slot (MicroSD) however is a bit of a problem. some cards work and some don't (I think because of the voltage being a bit lower than most cards expect in that slot, and possibly other reasons, some searching around in the forums should get you a better detailed explanation from Matt. )

Is the 3G modem an option? I see it in the specs as such.

If you are interested in just the modem so you can upgrade your smartbook to 3G send us an email and we will work something out.

Best regards,
R&B :)

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Thanks, not really that interested, I was just surprised to see the slot and was curious. I'm not sure why all netbooks don't have that as an option.