Alarm Clock version 1.2 adds another user requested feature: (Thanks Dave B.)

Auto-snooze – turn this option on and the alarm will hit the snooze button for you. When used in conjunction with ‘Snooze time’ and ‘Say time on snooze’ you can set the alarm to ring for 5 to 55 seconds, stop, say the current time, snooze from 1 to 60 minutes and then repeat. Choose the appropriate alarm sound to make your waking-up experience as annoying or as tranquil as you desire.