BlueStacks is releasing the first public alpha of its Android App Player capable of running on OS X. The virtualization company's software is powered by its Layercake technology and includes a bundle of apps from its various partners. CEO Rosen Sharma hopes the move will encourage developers to build "retina-friendly" apps for Google's mobile OS that can then be sold to those on the other side of the technology divide. There's a sign-up sheet for developers itchy to get their hands