To keep this simple, let's assume I am using a wallet like Bitcoin Wallet by Bitcoin Wallet developers on an Android smartphone. I go into a coffee shop and buy using my bitcoin wallet. I understand that it is going to take about 5 to 10 minutes before the transaction is first registered on the Blockchain.
How can I then "double spend" my bitcoin?
Ha, you want to cheat and spend money you've already spent? What an ass! Why do you want to be a cheat? A fraud?