I didn't read ALL the messages, but from what I did read, it seems like most of you are missing the most exciting thing about these... the underlying technology. You don't like the form factor or the battery life? Check out what Beats has to offer using the underlying technology. The battery life and form factor are not the killer things here(though regardless of what the people complaining about it say, 5 hours of charge from such a small device is actually extremely impressive).
I've had 3 wireless bluetooth headphones over the years, they're all a pain in the ass to move across devices and they all have irritating characteristics that the underlying tech in these things seems to address(have to wait and see to be sure how they do in practice, but it looks really promising). If it seamlessly connects to and moves between devices as promised in the demo, this will be among the most innovative and useful "star trek" like tech jump Apple's introduced post-Jobs.
A lot of you won't get it until you've stubbornly gone on amazon, ordered one of the current bluetooth headphones just so you can feel smug you didn't over pay Apple, and then you'll discover all the irritating limitations with current wireless headphone tech that these things address. Things I've been wishing would go away for years.
Without overstating it, if it works as promised in the presentation, these things could do for wireless headphones what the original iPhone did for smartphones, make them mass market so everyone has and prefers them(again, think underlying tech, not just this specific model). Because I swear to you, you order a pair of wireless headphones available on amazon right now and give them to an average person, most people will go back to their wired headphones because of all the little irritating things that can come up setting them up and using them on multiple devices(and who the hell wants to have to search the internet to figure out how to get headphones working?)
I'm holding on to my iPhone 6 for another year, but these headphones(I might go with one of the Beats offerings that use the underlying tech, not a huge fan of the bud style) will be mine ASAP(assuming they won't require a new phone or laptop to work with).