Prospective buyers of the iPhone Duo might need to exercise serious patience. Following the opening of pre-orders, estimated wait times for the handset appear to be slipping significantly for shoppers who did not secure an order right away.

Strong initial consumer demand, potentially combined with tight early supply, appears to be pushing delivery dates much further out. The growing backlog suggests that initial allocations are rapidly running thin across standard retail and carrier channels.

For those who have not yet placed an order, getting a device in hand in the near term could prove difficult as shipping estimates stretch into the coming weeks. Anyone hoping to snag one soon should keep a close eye on retail stock refreshes.

Check the original report on GSMArena for full details.