Sharing of material information is now supported in the Android version of Cargo Decoder. Select a material and click the share icon to let others know what you found. Configure what you want to share so you can send an email with lots of information or a text message with just the material name.
If you use Evernote, sharing will create a note about the material. Evernote can add GPS information to your note and connect pictures you take to better document the incident.
Important Note: Sharing with Facebook does not work even though Facebook adds itself to the sharing list. When you select sharing with Facebook, nothing shows up in the Facebook post. Facebook says the behavior is "by design" (https://developers.facebook.com/bugs/332619626816423)