once I read the part that said (Score 2)

"It could also sit by an astronaut, offering advice on an intricate systems upgrade" I gave up on thinking how cool this was. It reminded me of the oh-so-hightech cars of the eighties that -oh my god- talked to you. Those puppies were so cool that they advised you to fasten your seat belt ("please fasten your seatbelt"), or that your door was open ("your passenger side door is ajar").
If our NASA elite have not yet set some sort of detection system to alert the astronauts of an oxygen leak then as of now - I have stopped supporting them.
Lastly, I'm sure that's the first thing an astronaut wants when he is trying to think of a solution is a stupid red ball flying around his head like a horse-fly saying -

"YOU HAVE AN OXYGEN LEAK"
"YOU ARE GOING TO DIE SOON IF YOU DON'T THINK OF SOMETHING"
"GOOD THING I DON'T NEED OXYGEN"
"YOU SHOULD UPDATE YOUR CARGO BAY DOOR DRIVERS"
"I AM A BALL, WHY AREN'T YOU LISTENING TO ME"

I could see it now - an astronaut swating violently at some ball that is dodging his every swipe while repeating in a Johny5 voice "you have an oxygen leak, you have an oxygen leak"

I would just save the R&D money and stick with the alert buzzer/light.