Microsoft is reporting an 80 per cent rise in the number of registered developers for its windows Phone 7 since September.
With the total number of prospective app and game-makers for the iPhone rival now topping 15,000, the company is convinced WP7 can be a success.
"We're heading into one of the biggest shopping weeks of the year and we're on pace to offer roughly 3,000 apps and games by the end of this week," claimed Microsoft's senior director for Mobile Platform Services Product Management Todd Brix.
"Clearly we're just getting warmed up. The developer community is placing some big bets with Windows Phone this holiday."
However, figures have suggested that Microsoft's new mobile OS (currently split between nine different smartphone models) sold just 40,000 on its US launch day, despite a $100 million marketing campaign.
By contrast, Apple claims to have sold 270,000 iOS devices per day, while Google claims to enjoy 200,000 daily Android sales.