Cool little things about the Palm Pre that most people don't know

OK, I don't know of a list like this, so I'll start one! 

1. In the Calculator, if you press the space bar you'll get +/-, SQRT, %and Memory -
2. In a text entry field, if you press the Sym and the K key, you getthree smileys. Not much, but it's a good start.
3. If you tap and hold an existing calendar entry, it becomes availablefor editing without having to open it.
4. If you tap and hold and drag an existing calendar entry, you can moveit around on the day without having to open it.

If anyone sends more of these I'll add to the list!