No, ksucats is referring to the massive Mall of America (is it still the largest mall in the country?), a relatively short shuttle/bus ride from the MSP airport.
If you really want to do Internet and don't want to pay up for a SkyClub pass (I despise that new name, btw), your only other option would be to pay a daily rate for whatever WiFi the MSP airport provides.
Hopefully it would be around only $10 - $15 or so.
But I'm not sure.