I love working on ideas...
This is the concept of an 'E-Will'. Essentially, if you fall off the net and "die" you can have a preselected benefactor receive an e-mail message package.
If you fall off the grid for a preselected time, (2-24 weeks) the system sends out an email (with optional attachments) to the people you choose.
I want someone to have my bitcoin wallet if I die. So I encrypt the file and upload it to E-Will and give my benefactor the decryption key. If I don't 'check in' for 14-180 days the system timer will assume I have died and will send the email package to my benefactor.
The only thing I can't figure out is a good way to 'check in' to reset the system timer. You could log into the E-Will website once a week to reset the timer, but that would suck. It would be great to reset the timer every time you logged into Facebook or something. Would there be a way to reset the timer every time you logged into gmail or facebook? Probably not unless you were working directly with them.
But the idea is that if you don't log in for a selected time, your message and encrypted file(s) get sent to the benefactor(s) of your choice.
Someone set this up in SL. Put your items in a box, and if you don't log in for a month, the box and it's contents get sent to your friend. Some things just seem so much easier in there....