Here's one tablet with 2G connectivity

Pantel has today launched one low budget (approx 160$) Android ICS tablet. It comes with 1.2 GHz chipset processsor and runs on Android ICS platfrom. Packed with 5000 mAh battery, it supports all standard connectivity and multimedia formats. Additional and unique thing about this tablet is its 2G SIM compatbilty which let's you enjoy with normal voice call facility. You can get complpte detailes from here: happy