rioloft

Upon plugin activation, an “Add to your list” link with a star is automatically added at the end of each post and page.
Clicking this link will pop-out a list on the bottom right of the screen, and add the current post or page to the list.
This list is saved via HTML5 storage to the browser so it will be available also in the future to the user.
You can allow all users, or only logged users to perform some actions:
<ol>
<li>Sharing of the list via Facebook.</li>
<li>One-click iPhone-ready Content download of the selected posts in the user list as a simple Web app, 
ready for offline browsing via mobile devices</li>
<li>Sharing of the list via email.</li>
</ol>
You can see a working demo here: 
http://www.rioloft.com/rio-guide/

My Posts List with Offline Browsing

Let users build a list of their favorite posts/pages from the site and share their list on Facebook, via E-Mail, or  download content as a Web-app for …

neojp

Adds HTML5 placeholder support to the Gravity Forms plugin copying the Field’s label as the placeholder and hidding it. Javascript fallback is used for old browsers that don’t support the HTML5 placeholder attribute.
You can find the source code at the GitHub repository, forks and pull requests are welcomed. 
http://github.com/neojp/gravity-forms-placeholders/
<h3>GitHub source code</h3>
You can find the source code at the GitHub repository, forks and pull requests are welcomed. 
http://github.com/neojp/gravity-forms-placeholders/

Gravity Forms – Placeholders add-on

Adds HTML5 placeholder support to Gravity Forms' fields with a Javascript fallback. Javascript & jQuery are required.

My Posts List with Offline Browsing vs Gravity Forms – Placeholders add-on