1. reliance is a bullshit carrier who caters to people who mostly have dumbfones. also, it is one of the pathetic carriers whose signal quality is subpar
2. the competitor with the masses is TATA, a fucking huge business house. it has launched GSM services with NTT DoCoMo.
3. the real players in the GSM market are Airtel, Vodafone, and Idea.
4. sadly, i do not have a symbian phone anymore, so i can not test if i can purchase via credit card or not.
6. There is another carrier Aircel (not airtel) which has an app store of its own. but they mostly have shitty java apps, both free ans paid.