Am planning to buy a tablet, and am confused whether I should go for Wifi or Wifi+3G enabled one. Like there is difference of almost 10000 between the two variants of Apple iPad, just for the 3G facility.Has anyone over here used portable hotspot devices like Tata Photon Wifi or Vodafone Mifi? Or any other similar products available in the market? These products cost around Rs 5000 and can connect upto 5 devices. Was thinking that instead of spending 10000 more on the tablet, I should get one of this.My usage would be primarily be via such wireless connection.