We've seen this before: a highly-anticipated flagship phone that gets slightly different internals for the US market. LAst time it was the HTC One X, which gets a dual-core Snapdragon S4 on AT&T instead of the NVIDIA Tegra 3 found on the international version. Now a Samsung source has indicated a similar situation for the Galaxy S III. The Korea Times reports that an unnamed Samsung executive claimed that while the European version of the Galaxy S III will get the Exynos 4 Quad, US versions of the phone will go with a Qualcomm processor instead.
The reasoning is the same one given for the HTC One X and LTE models of ASUS' latter Transformer tablets: the high-performance quad-core chips aren't yet compatible with LTE networks. Samsung didn't say what the problem was. With three out of the four major US carriers already operating LTE networks or planning to do so within the year, it makes sense that the American version would go for a Qualcomm Snapdragon S4.
Not that that's a major issue: the dual-core 1.5Ghz S4 in the HTC One S has been putting up some great numbers, even beating the quad-core One X in some benchmarks. But the LTE limitation begs the question, what will happen to the T-Mobile version? T-Mobile released customized variants of both the Galaxy S and Galaxy S II, so they'd seem to be a shoe-in for the Galaxy S III. Since T-Mobile is still a long way from implementing LTE, will Magenta get an Exynos version of the next Galaxy? Keep an eye on Android Community during Samsung's May 3rd announcement to find out.