An explosion in mallicious software -malware - targeting Android smartphone users is being fueled in part by a budding market for mobile virus creation kits, as well as a brisk market for hijacked or fraudulent developer accounts on Google's app store Google Play that can be used to disguise malware as legitimate apps for sale.

http://www.smh.com.au/it-pro/security-it/mobile-virus-writers-pay-to-google-play-20130308-2fpfw.html