Auto-completion popup?

[Bill Haneman <bill haneman sun com>]

Hi:

I see that it was suggested that autocompletion use a popup window to
display its results, rather than rely on keystrokes to supply direct
completion into the entry field.

I have some accessibility concerns about this; in fact this could be
pretty awkward for screenreaders since they generally treat new popup
windows like dialogs (if they notice them at all).  Is the current plan
for the popup to be realized in response to a user keystroke?  If so,
perhaps this would be more predictable behavior from the end-user's
point of view.  Any sort of automagic popup windows can be very annoying
to sighted users and create very confusing noise for blind users; I'd
prefer to see autocompletion on-demand only.

regards,

Bill