According to third party site, Appshopper, apple has approved more than 100,000 iphone apps. Specific to time of writing this article the total number of apps approved is 101562 although only 92871 is actually available on the App Store. Comparing this to the Andriod market, according to Androlib, there is a total of 14165 apps distributed, at the time of writing. Thats is a major gap between the two.
This milestone shows the amazing interest people have in creating applications for Apple’s platform. Apple is yet to publicly promote this milestone, but that shouldnt be long.