Smartphone users are quite sensitive on GUI lag & applications startup time - this are times when every spare CPU cycle comes handy. Also, multitasking is slowly becoming commonplace - browse the web + listen to music + have IM running + running but minimized navigation app.
Also, Shotwell currently has no support for tagging video files.
Well, the Nokia N900 has TV out a supports Bluetooth HID devices (keyboards, some game controllers, etc.).
But nowadays you can buy a small jet engine designed for UAVs that might weighs 40 pounds and produces 200+ pounds of thrust, these kind of engines have been fitted to gliders.
Well, they already built something like that a while ago. But they are currently concentrating on suborbital VTVL rockets anyway.
Ehm, water balast ?
Arent aerogels hydrophilic ? Well, it seems, that they can be made hydrophobic...never mind.
Unfortunately, the sun site has been already Oracl0vn3d: the videos and gallery are not working...