Hi, I've been following the thread on the G1 / GH1 and I'm particularly interested in getting extra batteries for the GH1. However, I see that the cheapest original batt (intend to upgrade firmware so gotta buy original) is still ~SGD$130. When I check online with Amazon, I find that they are selling each for ~USD$63 which will work out to be less than SGD$100 or thereabouts if you include shipping from VPost. May I know why nobody seems to be getting these from Amazon? Did I overlook something?