Every single time Sony manages to confuse us with the name of its next new phone. History suggests this should be the Sony Xperia XZ1 Premium (except it doesn't have a 4K screen), or the Sony Xperia XZ Pro as rumoured, but nope it's the Sony Xperia XZ2, launched alongside a Compact version at MWC 2018 this morning. Fortunately, there's a lot more here to get excited about than a name.