Samsung Galaxy S4 review

The landscape has changed since the Galaxy S III came out, and good cameras, big and beautiful screens, and fast performance now come virtually standard. The Galaxy S4 comes into a fiercely competitive market, with great phones on all sides and a particularly strong showing from the HTC One — is it enough of an improvement to keep Samsung atop the Android heap? I’ve had one for a week or so, and I have a few thoughts on the subject.