I'm not sure whether the blades are proprietary, but I can find out if you like. A full set of matched and balanced blades currently sells for $19.95: http://www.thepocketdrone.com/store/p3/Pre-order_Spare_Prope...
HN user
AirDroids
20 minutes with onboard camera (GoPro etc.) - longer without the camera: https://www.youtube.com/watch?v=EYAKpmhMADI
Shipping is due to begin late summer, but Kickstarter orders will be shipped first. I've been told there is going to be a price increase sometime this month, although I'm not privy to the exact date.
Here's a flight time test with onboard camera, at 17 degrees Fahrenheit: https://www.youtube.com/watch?v=EYAKpmhMADI
TLDW: 20 minutes. Without a camera you'd be looking at around 25 minutes.
You're right that this info should be on the website - I'll make sure that happens. Thanks for the feedback.
For learning how to fly in the sub $100 price range, get a Hubsan X4 H107C - don't be put off by the low price - they are crazy fun to fly. For the $1000+ price range, the DJI Phantoms are great. For the $500 price range, check out http://www.thepocketdrone.com - the most successful drone Kickstarter campaign of all time (raised almost one million dollars). Disclosure: I work for AirDroids who manufacture the Pocket Drone.
For another multicopter in the $500 price range, check out http://www.thepocketdrone.com - the most successful drone Kickstarter of all time (raised almost one million dollars). Disclosure: I work for them.