Upgrading now: 5.16 gigs. Hah! This is going to take all night. Looks like everyone's downloading it at the same time.
I was quite impressed by 10.10 from the Keynote a few weeks ago, and I'm looking forward to experiencing some of that. No iPhone so can't enjoy that level of integration, but perhaps my iPad will be happier.
Meanwhile I have a Nexus 5 on order, and I'm debugging problems with my Linux PC's new motherboard. Certainly Linux on a roll-your-own hardware platform is a different world from the slick, smooth Apple experience. I like both for what they can do but the Apple is becoming my go-to front end while the Linux machine is becoming more of a server and back-end tool.