Apple has a new rival to contend with in the market for small tablets, a market that seems to be getting busier by the day. The latest 7-incher to hit the scene is the Google Nexus 7, an update to the already well-endowed Nexus 7 revealed last June. Google's timing for a fresh Nexus 7 might be fortuitous in light of rumors this week that a new iPad Mini might be pushed until after the new year. Google meanwhile is well-armed for battle, even if Apple comes at it with Retina. As companies gear up for the holiday buying season, here's a look at how Google's latest Nexus 7 stacks up against Apple's current iPad Mini.