In particular, the number of apps submitted is accelerating on Windows Phone. It took over a year to get the first 40,000, but the last 10,000 were submitted over the last 40 days. Notably this growth acceleration has occurred since the launch of the Nokia Lumia line of Windows phones, suggesting that the marketing push by Nokia and Microsoft is succeeding in attracting developers to the platform.
The 50,000 app number measures how many have been submitted – some 6,000 apps have been rejected or removed by Microsoft. Also, the number of apps available to end-users varies from country to country.
All in all this is a promising achievement for Windows Phone. Perhaps it will be the harbinger of good things to come in 2012? Check out the graphs below if you want all the nitty-gritty details.
source: AAWP via Tech Crunch