How much? $350.

Coolest trick? Sending taps to other people. You can tap them on the wrist remotely. This will allow parents to bug their kids like never before. The same technology gives you tactile hints fro turn-by-turn directions, which is a reminder that this is the 21st century.

Most needless aspect? Facebook notifications, if you hate Facebook. If you live on Facebook this will ruin your life, but only if you let it.

Whoa, wireless charging? Sort of. Not really. It's not as if you can put it on the nightstand and it'll soak up energy from the ether. You attach a device that looks like a stethoscope, and it charges.

Will it work with my iPhone 4? No. Sorry. 5s, yes.

Most underrated feature that will be ordinary one day but intermittently cool and frustrating right now? Using the watch to pay for something just by tapping the credit-card terminal - providing it's so equipped. Many are. Walgreen's uses them. I wonder if there's a security feature built in, because otherwise what's to stop someone from stealing your watch and going on a shopping spree?

Why doesn't it look like the mockups that had a sleek piece of curved glass that fits over your wrist? It will, some day. This is version 1. It will get thinner, faster, more powerful, smarter, and everything else except cheaper.

Will it stream music to my Bluetooth device? I don't know. It can control music from the "Glance" screen, but that might connect to iTunes or AppleTV. If it's not in this version, it will be in the next. While that's a cool feature, it would mean one more device to sync with your library, and right now I have a phone with some songs, a classic iPad with all the songs, an iPod mini that has 1/4th the library and is inadequately synced because my daughter uses it all the time because she dropped Mom's and the screen shattered. She only listens to the radio, which reminds you that they didn't put a radio in the thing. That would be nice in the next version.

Will it cause great gnashing of teeth on tech sites where people complain about Apple cultists and how their Android device did this a year ago? Will cause? It began the moment the slide went up on the screen.