I know what you are thinking. I have an external enclosure with a 2 TB drive in it already. While I can say the same thing, the external power adapter, fan, and weight in the 3 pound range pushes our external drive out of the portable drive category. Let me show you what Western Digital's new Passport looks like so you get the idea of what portable really is.
There you go people. Two terabytes of storage in a wallet sized drive that needs only the power of a USB port. The cherry on top is using USB 3.0 to give you the speed only limited by the drives rotation speed and not the port data throughput.
The new WD Passport series will be available at select retailers and etailers, and Western Digital's Online store. MSRP is $129.99 USD for 500 GB, $149.99 USD for 750 GB, $179.99 USD for 1 TB, $199.99 for 1.5 TB and $249.99 USD for the new 2 TB edition. All should be available in the above shown colors.