Woolies just keeps expanding like the Borg. The group now includes supermarkets, Big W, Dick Smith, and Caltex/Woolworths petrol stations — and it’s at these locations that they’ll be selling a $2 prepaid 3G SIM pack and Android phones. Powered by Optus, ‘Woolworths Mobile’ will have $29 and $49 prepaid caps, but make sure you read the fine print.