The top two widgets in this screen are both from Beautiful Widgets, which allows customization of the clock and weather info on the home screen.
There are hundreds of free skins to download within the settings to make your Nexus 7 home screen your own.
Beautiful Widgets handles screen rotation beautifully, as demonstrated in this landscape screen.
Note that home screen rotation was possible due to the Ultimate Rotation app.
Another clock/weather widget is Fancy Widgets. While not as many skins are available as in Beautiful Widgets, this one is quite good for customizing the appearance of the Nexus 7 home screen.
Many Android apps install widgets for use on the home screen, and the Flipboard widget is a great way to keep up with what is important to you.
It can be set to automatically refresh at a specified interval or set to manual refresh by tapping the icon on the widget.
There are many whimsical skins available for Beautiful Widgets such as this Blackboard skin used on both the clock and weather widgets.
The Friendcaster app is a Facebook app replacement that takes good advantage of the big Nexus 7 screen. It installs a widget that works nicely for keeping up with Facebook friends on the home screen.
Another clock/weather widget for the Nexus 7, HD Widgets is my favorite as it has several different sizes to choose from.
Everything on this widget is customizable to make it just right. HD Widgets handles screen rotation nicely, as demonstrated in this and the following screen.
HD Widgets- landscape orientation
Here is the same HD Widget from the last screen rotated into landscape. The rotation was made possible on the Nexus 7 by the Ultimate Rotation app.
The Google+ app on Android is wonderful, and it installs this widget which is a great way to keep up with the world on the Nexus 7.
The FlightTracker app is the best way to keep up with upcoming flights, and the Pro version syncs with TripIt.
The app installs this widget which is a wonderful way to keep up with flights for frequent travelers.
Looks like I need to get traveling.