Samsung seems to be killing time until it finally ships the Galaxy S II by making promo videos for its dual-core superphone. The latest in a series of ads for the S II spends a few precious seconds reminding us just how excellently thin it is, and gives us a particular usage scenario where that slim profile truly becomes practical. We won't spoil that for you, though we should play spoiler in noting the barely readable small print above -- "Thickness of the device may differ by country or carrier." So remember,
