Android: Senti Wayk may be the last alarm clock you ever download, assuming you're willing to pay $2 for it. The app wakes you gently with a tone that starts off quiet and gets louder, and it lets you snooze the alarm by speaking to it or waving your hand over the proximity sensor. When you do get up and dismiss the alarm, Senti Wayk will speak the temperature aloud to you, show you your calendar for the day, and gets you up to speed with a few news feeds.
Senti Wayk's snooze feature is probably the most interesting thing about it: when the alarm goes off, you can say aloud "snooze for 10 minutes", and the app will respond, aloud, "snoozing for 10 minutes", so you can go back to sleep. Alternatively, you can wave your hand over the phone (assuming it's face-up on your night stand) to snooze the alarm. The app looks great (and almost a little Metro, borrowing a few cues from Windows Phone 7), and when you do pick it up to dismiss the alarm, the app will fill you in on the day's events. It speaks the weather to you, and if you connect your Google Calendar, it'll show you your appointments before pulling in a few RSS feeds that you can read to find out what happened when you were sleeping.
The app is $2 at Google Play. If you're already in love with another Android alarm clock, like our favourite, Alarm Clock Extreme, or the more expensive Gentle Alarm, you may not want to drop the cash. If you're still using the stock alarm clock though, it's worth a look.
Senti Wayk [Google Play]