Kingston Wi-Drive 32 GB USB 2.0 External Hard Drive WID/32GBZ for IOS devices 

Description

Wireless Network Interface - Wi-Fi 802.11g/n with wireless security (WPA/WEP)
Rechargeable Battery - up to four hours of continuous use
Cable - miniUSB to USB cable included. User can upload files and content from their PC/Mac to the Wi-Drive using the USB cable.
App - downloadable at Apple's App Store
Compatible with iPad, iPhone 3G/3GS/4, iPod touch (3G is limited to iOS4.2.1+)
Configurable APN (access point name) and Key functions to connect to Wireless Access Point (Internet Connection)
Guaranteed - one year warranty
Supported File Formats: Audio: AAC, MP3, WAV Video: m4v, mov, Motion JPEG (M-JPEG), AVI Image: jpg, bmp,