The Nook runs Android. I wonder if it counts towards 'activations'. Last quarter B&N sold ~3M Nooks, which would be ~33k activations per day. Not that huge, but the difference between 465k and 500k activations. The Nook and other tablets and devices might actually end up combining to an appreciable amount (100k/day??).
Interestingly Tim Cook made some comments about the Android activation numbers on the Apple call yesterday:
"I think the Android activation number is a difficult one to get our hands around. Because unlike our numbers, which you can kind of go to our data sheet, and add the iPhones and iPads, and make a reasonable approximation of the iPod touch—which we said is over half of our iPod sales—you can quickly see that in June quarter we sold over 33 million iOS devices. And across time… we’re now over 222 million cumulative iOS devices. So we think this is incredible. So our numbers are very straightforward, they’re transparent, and they’re reported quarterly."
I'm not quite sure what he's getting at here. It seems he's suggesting that the Android activation numbers are, shall we say, soft, but if he is that's an interesting claim and one which I'm guessing can be checked relatively easily (add up what the major suppliers claim to be shipping - HTC, Samsung, B&N - if you can't get in the ball park then something might be up).
"...which I'm guessing can be checked relatively easily (add up what the major suppliers claim to be shipping - HTC, Samsung, B&N - if you can't get in the ball park then something might be up)."
I would like to know the numbers too but I think it's not that easy to determine or else someone would have done it by now. It seems the only reference there is to the number of Android devices is when Google mentions it during earnings or @arubin tweets it. No hard numbers exist anywhere.