Michael Albinus <michael.albinus@gmx.de> writes:

> Ido greys out "~/" because of the double slash. It has nothing to do with
> a remote file name. Again, there is no remote file name, only a string
> which might be a remote file name when it is complete.
>
>> Type a : to specify a path and watch the "~/" get un-greyed out.
>
> That seems to be an ido problem. With plain "M-x find-file" I cannot
> reproduce it.
>
> However, even if this grey out does not work as expected, I believe that
> opening the file (after entering RET) still works as expected.

Let's see...  I `C-x C-f' while in a Tramp-ey buffer: