I love this idea and really want you to find a way to succeed, but certain aspects of this idea have risks you need to weigh.
I can only comment on lead, because I've had home lead testing done by a professional. The worry I have with lead is that encouraging vacuuming for sample collection could conceivably cause lead contamination to spread. We were told by our tester that if we attempted to clean problem areas ourselves, to only use water and disposable rags to avoid spreading lead dust.
Our lead tester used an XRF analyzer (these devices are expensive), which uses X-rays and requires no dust sampling. He could simply point it anywhere and see precisely where all the lead was.
I wonder if it would be feasible to include a packet of special wipes instead of a single dust vial. Then users could individually wipe and label by room, and ship each wipe in a separate, sealed, labeled, plastic envelope. This could solve any dust contamination issues, but I suppose it's possibly harder to test for contaminants from a wipe than a vial.
I hope I didn't inadvertently imply a correlation between phone rooting and Play Store behavior. It doesn't work for me now because Google wants me to upgrade my currently installed sideloaded version of wallet in order to function at all, but the Play Store won't let me and I'm tired of sideloading the app.
My only successful Google Wallet experience was before both rooting and installing CM, with a sideloaded apk, using the build that shipped with the phone.
If you are using Verizon, no. I have a rooted Galaxy Nexus Prime running CyanogenMod 10, and the Play Store has always said, "Your device isn't compatible with this version." when attempting to install/upgrade Google Wallet.
When I first got this phone, before rooting it, I had found a "sideloaded" apk of the app which worked for awhile, but I was unable to upgrade to newer versions of the app easily.
This is a good idea, but I think to be effective would require more organization; everyone here deciding to do this the next time they fly to their random destination wouldn't likely delay any flights.
If you could organize enough people to constitute 25-50% of a flight's passenger capacity, you could plan in advance to all fly to the cheapest/closest destination (so everyone is on the same flight, and no one has to spend too much). Maybe some publicity would result.
I can only comment on lead, because I've had home lead testing done by a professional. The worry I have with lead is that encouraging vacuuming for sample collection could conceivably cause lead contamination to spread. We were told by our tester that if we attempted to clean problem areas ourselves, to only use water and disposable rags to avoid spreading lead dust.
Our lead tester used an XRF analyzer (these devices are expensive), which uses X-rays and requires no dust sampling. He could simply point it anywhere and see precisely where all the lead was.
I wonder if it would be feasible to include a packet of special wipes instead of a single dust vial. Then users could individually wipe and label by room, and ship each wipe in a separate, sealed, labeled, plastic envelope. This could solve any dust contamination issues, but I suppose it's possibly harder to test for contaminants from a wipe than a vial.