I just bought it 5 minutes ago, for $85 ($15 came off with the coupon save15HP). Here's the trick:
Log into HP either via an academic login or EPP
Then INSTEAD OF SEARCHING THE HP WEBSITE, click one of these 2 links:
16GB
32 GB
Add to cart and buy
When I just searched the HP website for the Touchpad (even while logged in with EPP or academic), it didn't return results with the low price. However, when I used the above links AFTER ALREADY BEING LOGGED IN TO EPP, then I got the $99 price.
ps. I don't know what the magic juju is with the above links that makes them work. All I know is they were posted on Slickdeals, I clicked them, it worked, and I bought a Touchpad for $85.