At the counter's current pace, the 10 billionth app should be downloaded sometime late next Thursday, Jan. 20.

The Mac App Store, a companion market to the iOS App Store that deals free and for-a-fee software for the Mac, launched Jan. 6. According to Apple, customers downloaded one million Mac applications from the store in the first day.

Gregg Keizer covers Microsoft, security issues, Apple, Web browsers and general technology breaking news for Computerworld. Follow Gregg on Twitter at or subscribe to . His e-mail address is .

in Computerworld's Mobile Apps and Services Topic Center.