My WD Wireless Passport arrived today.   I got the 1TB model.   It is a solid device.  I can access it wirelessly through my mac or iPad, and can copy SD Card files directly to the hard drive.  I did the firmware update, but will really test it out in a couple days when I am in Chicago.  I am going to use the trip as a test run.  I'll have my camera, the HDD, and my iPad, and see how it goes.  
It is not a small hard drive. Quite large casing, but it does have a lot of extra stuff built in, including a battery, SD reader, and controller. I have setup the WD private network, that seemed to work pretty well. Still learning.
				
			It is not a small hard drive. Quite large casing, but it does have a lot of extra stuff built in, including a battery, SD reader, and controller. I have setup the WD private network, that seemed to work pretty well. Still learning.