How feasible/useful are these wifi portable hard disks for pairing up with IOS devices? I mean like the Seagate GoFlex Satellite is 500GB, has 802.11 b/g/n Wi-Fi from 30 ft, 5hrs operation, 25hr standby time for $200. http://www.amazon.com/Seagate-Satellite-Wireless-External-STBF500101/dp/B004Z0S7K6 . There are faster flash based ones, some going for around $50 for 16GB. Seagate have an iPad app that allows the drive the connect wirelessly. Im looking at this as an option to pair along with the 16GB iPad 3. The 64GB SKU is the same $200 more for a lot less space and at least this HDD can be used on multiple devices. I also looked into the possibility of using my Android phone as a wifi mass storage device accessible by the iPad. I already use it for tethering data anyway, why not storage too? Any advise or opinions on the feasibility of this?