http://www.usb-pro.com/usb-flash-drive/pen-usb/

Touch screen pen flash drive usb for ipad/iphone ,3 in 1 style touch pen usb 4gb , promotional metal pen usb pen 953p
Features:
Available Capacities: 64MB/128MB/256MB/512MB,1GB/2GB/4GB
Supported Operating System: Windows 98/Se/Me/2000/XP/Vista/Linux 2.4/Mac OS 9.0 or above
Driving Program: Only Windows 98/Se systems need to install hardware drivers