Useful Android Widgets

Widget time!
Here are some Android widgets that I think are worth knowing about:

Shazam
With the Shazam widget, you can tag a song from your desktop with one touch.
Enough said.

Foursquare
The Foursquare widget, will try to display the location you are at, allowing you to check in almost immediately. In case the location is not correct, a "next" button will cycle you through other nearby locations.

Waze
For those that don't know, Waze is a crowd sourced navigation application. The Waze widget will give you at-a-glance estimated travel times to your home or your place of work, and a one-touch shortcut to launch Waze and have it navigate you to that location. Additionally, the widget exposes a "Commute-O-Meter", which is a chart that shows what your commute time might be if you left at different times plus or minus 30 minutes of the current time.

Pandora/Rhapsody/etc
Various music services have widgets that will present your basic music-controls (Play/Pause/Previous/Next) directly on your desktop.

Shortcuts
While technically not widgets, shortcuts are also useful features of the Android interface. On my phone, the following useful shortcuts are available:
- Direct Dial - dial a specific phone number
- Direct Message - text message a specific phone number
- Directions & Navigation - navigate to a specific address
- Person - open a specific contact
- Gmail label - view emails with a specific label in gmail


Know of any other useful widgets, shortcuts, or tips & tricks? Please share in the comments.


Disclaimer
I have had a horrible experience with my Android phone, and a good number of my friends with Androids would also rate their experiences as "bad" or worse. I highly recommend people stay AWAY from Android phones. And no, I am not an Apple fanboy.