just bought dis handset in delhi.. you need to upgrade your old simcard ( RUIM) which costs arnd Rs 100. All functions work including data after the upgrade. Reliance does not have OMH simcard and the reliance ppl dont have any idea abt OMH. They don,t even kno abt the handset. I bought it and took to a reliance store and they were arguing that this is a GSM handset and Not a CDMA handset!! Idiots!! but just ask for a new simcard and voila!! it works like a charm!!!
Cheers