13. The one or more non-transitory computer-readable media of claim 9 , wherein the remote host has a first plurality of user interface components, and the client device has a second plurality of user interface components, each of the first plurality of user interface components corresponding to a different one of the second plurality of user interface components, and wherein said instructions, when executed by the one or more computers, further cause the one or more computers to: substitute, by the client device, one of the second plurality of user interface components for a corresponding one of the first plurality of user interface components received from the remote host; and send user input to the remote host responsive to the corresponding one of the first plurality of user interface components based on user input received via the corresponding one of the second plurality of user interface components.
14. The one or more non-transitory computer-readable media of claim 13 , wherein said instructions, when executed by the one or more computers, cause the one or more computers to alter a language of content within the corresponding one of the first plurality of user interface components to a language associated with the client device.