Just tell him an update for an app he uses every day will be released later this week .... and then 3 months later hwen there is still no update .... his head explodes.
Like everyone else here I congratulate John on some very cool coding. Some of the add-on's being developed make it even cooler. But teasing about release dates and "keeping features a secret" .... hey wait .... isn't that Bill Gates territory?
To paraphrase Jack Nicolson "If you're trying to give me hope you'll have to do a little better than that .... I'm drowning here and you're describing the water."