A week after selling out its stock of 16GB Nexus 7 tablets completely, Google has finally caught up to demand. The more capacious tablets are now back in stock on the Play Store, with an expected delivery time of 3 to 5 days. That's the same shipping time as the 8GB version, which has been far easier to get up until now. Unfortunately, retail outlets don't seem to have gotten more units, as the Nexus 7 is still listed as sold out at Adorama, Sam's Club, and elsewhere. While we're still not sure how many tablets were in the first batch of these, the 16GB version was the only one sold at retail, meaning Google may have spread itself thinner than it expected. The Nexus Q, meanwhile, is still shipping in 2 to 3 weeks after selling out on its second day of availability.