There is a nice Search in Calendar, by Reda, a support for two batteries and plugged devices in Power Panel, by Allan and some mockups in Gnome Maps, by Andreas.
Keep on mind that these are just early designs that may never arrive in GNOME the way they look now, or the may arrive at all!
Gnome Calendar
I will start from Calendar which in my opinion is the most well designed GNOME Application, and I think you all agree on that. At the moment Calendar can sync with the Google’s one and display the results, but can’t do much more than this yet.
Gnome-Calendar has copy many small features from other similar applications, it has improved these features and it manages to be simple and useful in a perfect line. People that never used Calendar Apps before, they will now, I bet on it!
Nothing can’t be useful without a search..

Similar search filters with Gnome-Documents that make use of easy to add/remove tags as many web-apps do.

Reda focuses on Mayan Prophecies and Aliens. Making jokes is the best way to tell the truth. Was Reda a believer? ;)
Results are displayed in a nice way, they have a map integration, and more results use a scroll bar.
Gnome Maps
Gnome Maps basically replaces Emerillon and it seems to use OpenStreetMap Open Maps framework. Firefox OS will go for their default Map App with HERE, after making a strategic partnership with NOKIA. HERE API will be also available for Android SDK and is expected to have some new patents and deals fights on this “area” ;)
Main

Search

Directions

Gnome Maps won’t come in GNOME 3.8 and is still on design state.
Power Settings
The new power settings might make it in GNOME 3.8 since there are already some patches. From Power Panel you will able to see the state of the battery in your plugged devices, like a wireless mouse. Also some options will be moved there and the current Brightness and Lock Panel in 3.6 settings will be removed. Lock Screen settings will be moved in Privacy Panel.

What if you have two batteries through an Ultrabay or USB? GNOME should be able to identify both and will place a “bolt” icon in the battery which is discharging.

I Can Get No Satisfaction
..as Rolling Stones sing. You know this issue that you had to <Alt> for making visible the <Power Off> option, and all the complains that were raised from it. I was a bit bothered as well with that. Well, in GNOME 3.6 they did the opposite and you now have to <Alt> in order to <Suspend>. And I got again bothered since I decided that is most convenient for me to Suspend rather to Shutting Down..
Also MS recommends to users to Suspend and not Power Off their Win8 and in general is a good idea, since you boot faster and you can have your Apps and your work “On” at all times.
Sometimes you listen a small unimportant thing, you remember it for the next of your life, you just can’t forget it, and the worst part is that you have to share it ;)
About the <Alt>/<Power Off>; I had read once a bug report from a woman, that she was saying ,she couldn’t Shutting Down her PC, because she was holding her baby with one hand. I said it, I am feeling better now ;)

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