From Helena Valley, Perth, WA I saw 18 meteors in 75 minutes. That gives me a ZHR (Note that Gemini wasn't exactly at Zenith) of 14.4. However some of those weren't Geminids. Lets say 13 where, that gives me a Geminid ZHR of 10.4. This observation was from moderately light polluted skies with me only looking at half the sky for 60% of the time, so I expect rates are better elsewhere. The Geminids are expected to peak tommorow afternoon in Australia, when it is dawn in America, with a ZHR of 120. Good viewing should still be achievable tommorow. Most of the Geminids I saw where yellow, moving quite slowly and with a moderate brightness.
Hope this helps
, Sean