ZOMG! Volantis? Is it time for Volantis? You know you were thinking that, but we just don't know what's going on. All we can say for certain is that Google's Play Store in the US has no stock of the WiFi N7 or the LTE versions with AT&T or T-Mobile SIMs. The only version you can get is the "GSM Networks" LTE tablet.
There are various degrees of "unavailable" on the Play Store, but this time the message reads, "We are out of inventory. Please check back soon." That could mean that more stock is on the way, but the device is over a year old at this point. I'd be surprised if it was still being manufactured at all. It might be gone for good.
Last we heard, Google was planning a new HTC-made Nexus tablet codenamed Volantis to launch this fall with Android L. Perhaps we're looking at a few months where Google isn't selling a tablet. Or the N7 could come back into stock after a shipment arrives. We'll just have to wait and see.