Re: tooltip-delay

[Richard Stallman]

    It's possible that the language could be a factor.  The current
    default (5 seconds) seems to be consistent with what other GUI
    environments do.

I have sometimes been unhappy with how fast they disappear, and I am a
native English speaker.  I think they should remain for 10 seconds by
default.

Meanwhile, another problem with tooltips is that some of them are
truncated.  This happens in the mode line, for instance.
I think we should arrange to display longer tool tips.