Introducing Photos for OS X. Featuring an easy-to-use and streamlined design, Photos has been engineered from the ground up to help you keep your growing library organized and accessible. Powerful and intuitive editing tools help you perfect your images as well as create beautiful gifts for sharing. And with iCloud Photo Library, a lifetime’s worth of photos and videos can be stored in the cloud — so you can access your entire collection from your Mac or iOS devices anytime.
I’ve been using iPhoto for a decade. I have a lot of photos. With a 6 month old (as of Sunday), I take a lot of photos these days. Having easy access to those photos across my devices seems like a dream. And Apple seems to be trying to make that dream come true.