On the day Apple rolls out its next generation of cellphones, I offer some thoughts on where mobile is heading, fast. Apple's new smartphones are bigger than ever, and highly capable. It's a major signpost of where we're heading, with phones that can do pretty much anything a low-end computer can do, and then some. But it's not just Apple driving this direction, and it's not just big screens. At last week's Mobile World Congress Americas, the super-fast next-generation network technologies being rolled out in the United States and elsewhere around the world. Who are the companies that will take advantage of these new technologies to create transformative new experiences in games, augmented reality and many other areas? Let me know your thoughts.