"I don't think it would expand if it couldn't meet consumer demand, as that would lead to extreme consumer dissatisfaction - which compared to its peers, Apple is usually good at avoiding."

With Orange this year and later in 2010 Vodafone able to officially offer the iPhone, reports suggest the limited stock will be shared amongst mobile phone network providers putting the pressure on O2.

Orange will need sufficient handsets to launch the iPhone successfully sometime before Christmas.

Betting site believes Orange, who are on target to buy T-Mobile to become the UK's largest mobile phone company later this year, are 11-10 favourites to sell most iPhones in 2010.