Amazon.com: SD Card Reader for iPhone iPad, 4 in 1 Micro SD/SD ...
Amazon.com: SD Card Reader for iPhone iPad, 4 in 1 Micro SD/SD Card Reader to iPhone Adapter, SD Card Viewer with TF/SD Dual Slot, Portable Camera Memory Card Reader for iPhone with Charging Port, Plug and Play : Electronics.
And Then There Were None: The Case of Vanishing Mobile SD Card ...
Now, in phones that still have an SD card slot, you can still redirect your photo, document storage and backups to it. There is no reason for the SD card merely sitting in the slot waiting to be fed to slow down anything with the phone.
phones with sd card slot - vanmau.com
Subsequent flagship devices - the Motorola XOOM and Samsung Galaxy Nexus - have also shipped with large internal storage, but no SD card slot.