Onlytech had an article on Vodafone shutting off 3G in Bengaluru and Chennai, but didnt hear anytihng about Delhi. Anyway, sooner or later this is bound to happen. I know many other areas in other circles, where they've shut off 3G without sufficient communication or intimation. I think we have to accept that its going to be a 4G only world. They might shut off 2G too soon, but are just holding on due to the large number of low-income / basic handset users that still exist across the country.