BBM (free) WORLD-WIDE calls
I'm developing a Blackberry application that enables users to call their BBM contacts for free ( Using 3G, EDGE, wi-fi etc..)
Quality of the calls are great depending on your connection speed (the faster your connection, the better call quality you will get!)
Free users will get some limitations (short calls, limited number of calls)
Premium users can call anyone with a Blackberry phone (whom also has this app installed) anywhere in the world, 24/7/365! For a yearly fee.
It's probably going to be Somewhere between $10-15/year for UNLIMITED world-wide calls! + ~20% discount if you purchase 2 copies.
what do you think?
any comments/suggestions?
what do you think of the price? how much would you pay per month for an UNLIMITED monthly subscription?