Now here is where things get a bit unusual. HSN is offering the 16GB Sony Tablet S for $599.95 or for 4 payments of $149.98. Sony, on the other hand, is taking pre-orders for the same exact device for $499.99. Android Central spoke with HSN which confirmed the pricing and said that orders are shipping now.
So those who want the Sony Tablet S are left with a choice. You can pay $599.95 and get the device shipped to you now, or you can save $100 and pre-order the tablet directly from Sony, but you will have to wait until the manufacturer announces a shipping date before you get your mitts on the tablet.
source: HSN, Sony via AndroidCentral
The 16GB Sony Tablet S is $100 cheaper when pre-ordered from Sony (R) than if purchased from HSN (L)