I just attach money to a Gmail message or send via the Wallet app. Either way, same concept as the service in the link (when you're both on the same platform,

I just attach money to a Gmail message or send via the Wallet app. Either way, same concept as the service in the link (when you're both on the same platform, it's easy to send money). Your way is a bit more flexible (like when a chat/IM falls back to SMS if the recipient doesn't use the same platform) but in general, these electronic transfers do make it a lot quicker.