The 50,000 app mark was reached on December 27th, the 60,000 mark on January 22nd, the 70,000 mark on February 23rd, and the 80,000 milestone on March 26th. It has taken an additional 35 days to reach the 90,000 mark.
At the current (April) pace, the 100,000 milestone will be reached in June.

The graph above shows the growth in the total number of apps (content items) published to the Windows Phone Marketplace over the last 18 months.
http://allaboutwindo...tplace_pass.php







