Google and Apple are neck and neck in app volume, with both companies reporting 700,000 available apps for their respective devices.  It also looks like Google’s attempts to rival the iPad mini is working, as the Nexus 7 approaches the one million monthly sales mark.  Here to discuss what’s going on in the Google and Apple worlds is SiliconANGLE Contributing Editor John Casaretto, who dropped in for this morning’s NewsDesk segment with Kristin Feledy.