There are also a couple of apps for the iPad (probably for the other iOS-Devices too), like "Wake-up lite", which imitates sunrise by brightening the screen and plays a sound (eg. from tweeting birds). It's also available in a free version:
Low-Tech Brain Hacks to Wake Up Fully in the Morning
|3/10/12 2:39 AM|
Accessing your desktop while you're away means that it's running all the time, doesn't it?!
How to Access Your Home Desktop While You're Away
|11/30/11 3:43 PM|