Microsoft launched a Windows 8 app-for-cash promotion this week because growth of the company's app store has slowed this quarter, an analyst argued today. From Computerworld:

"Month-over-month growth has slowed to just 10-15%," said Sameer Singh of Tech-Thoughts in a Friday blog post. "In response, Microsoft has launched a promotion, offering developers $100 to publish an app on the Windows Store."

That promotion, dubbed "Keep the Cash," kicked off Tuesday. Under its rules, developers who publish new apps to the Windows Store -- the mart that distributes Windows 8 and Windows RT "Modern" apps, the full-screen, tile-based software formerly known as "Metro" -- are rewarded with $100 per app, up to a maximum of 10.

 Windows 8 app store growth slows