**This is my personal blog. The views expressed on these pages are mine alone and not those of my employer.**
Currently, group chat and new emoticons are enabled for all Gmail users who use IE7 and Firefox 2.0 with English version of Gmail. Those on IE6 and international versions are still running the older version of Gmail. I do not know exact schedule for rolling out the new Gmail to them, but it's a matter of weeks, not months.