Comment 11 for bug 550704

a) You do not need to switch your keyboard layout to write in english
b) If a user selects the us layout as default keyboard layout at installation _even though_ the installer defaults to a sensible default for the language selected earlier, it is to be assumed that the user either preferres the us layout to begin with or is indeed native us user and just happens to live somewhere else (for whatever reason there is).

Showing an indicator to switch the keyboard layout in cases where layout != locale layout is simple pointless. You can't even list another layout because for some locales there are multiple different layouts and you wouldnt know which one to list. If you care to be able to switch the keyboard layout at runtime, then there is appropriate functionallity around to make this happen, but there is no reason why the average user would need this.