The devices look cool from a technical perspective. It could use a few more sensors (GPS, gyro/movement, temp, etc.) but I'm sure that will come.
The only problem, I think, is that they're not very stylish. A bit too large/clunky looking. I'm not sure how to fix that while keeping the display a useful size. But that what geniuses like you guys are for!
If they really take off, I'm sure the design could become much smaller and more elegant over time.
I ordered one to hack about with. If it becomes part of my daily routine I'll probably have my jeweler in Detroit hook up a more attractive case and band for it.
Agree on the sensors, it would be nice to at the very least have a dead-simple accelerometer, but I also know what goes into bringing a piece of hardware like this to market. The $150 price point probably doesn't leave a ton of margin, and it's just on the cusp of not having to be a "considered purchase" for people. Adding more stuff would drive up the manufacturing cost and price into something that starts to become a $399 product and the number of experimenters who will buy one on a whim drops dramatically.
The only problem, I think, is that they're not very stylish. A bit too large/clunky looking. I'm not sure how to fix that while keeping the display a useful size. But that what geniuses like you guys are for!