Is there a way to store my cryptocurrency on one of these implants?
You might be interested in the upcoming VivoKey product… it is a full java card platform that you can use to as your own Bitcoin wallet.
But i could put my public key for receiving bitcoin on the device?
Correct, just use the bitcoin:// URI format and most nfc enabled wallets will properly identify the Bitcoin address.
When would vivokeu be available for purchase?
We are expecting advanced v2 prototypes this month, then launching a beta program in early 2018.