Shipments of the iPhone 3GS are diminishing rapidly, at least in certain regions, a report claims. Sources from "a major European iPhone carrier," for instance, say they are expecting few new units to arrive in upcoming weeks. An informant at a "major US based iPhone reseller" meanwhile claims that 3GS stock is substantially lower than normal. The person adds that in several regions in the US, no 3GS shipments are happening at all.