Committed improvement at revision 34663.

The component now does something similar to ace:autoCompleteEntry to return focus to the field and place the cursor at the end of the text.

QA reports the follow new regression issues using showcase ICEfaces3 trunk revision# 34718:

GMap 
    > Autocomplete (ICE-9172 is marked as resolved).
Selecting a location from the autocomplete dropdown works, but the options dropdown opens up again and remains open afterwards (all IE and Chrome, not in Firefox) .
Also, there is a JS error in all IE browsers when navigating to this demo page, and re-sizing the webpage; 

Error in IE9:
Message: DOM Exception: NOT_FOUND_ERR (8)
Line: 1
Char: 1
Code: 0
URI: http://10.18.39.149:8080/showcase/showcase.jsf?grp=aceMenu&exp=mapBean

Error in IE10:
Message: NotFoundError
Line: 17
Char: 473
Code: 0
URI: http://10.18.39.149:8080/showcase/showcase.jsf?grp=aceMenu&exp=mapBean

Committed fix for reappearing popup issue at revision 34870.

The JS error when resizing is not exclusive to the autocomplete demo. It happens with all other demos as well when resizing, although sometimes the error messages are different. The error is reported for some code on the page itself, so it's something that we render in the server. So, it's hard to tell where exactly it is, based on the browser's feedback. I think it has to do with the showcase navigation style, where some content is dynamically replaced/hidden without navigating to another URL, since this error doesn't happen in the overview demo. I haven't found the root cause, but there are still a few things I plan to try.

Closing issue again.

Committed fix to prevent popup from reappearing at revision 34870.

The issue with resizing is actually not related to the autocomplete component. It is a more general issue with gmaps. I created this JIRA and added some observations:
http://jira.icesoft.org/browse/ICE-9250