The use of mobile devices has sky rocketed in recent years.  Users are browsing the web with tablets and phones of all sizes.  This is great for the consumer, but has presented many challenges for IT departments around the world.  How do you ensure that you site looks good on every device out there?  How can you ensure that your site not only looks good, but is fast and efficient as well?  One of the biggest challenges for web developers and designers is to ensure that images have the right level of quality, but aren't so big that they take more than a few seconds to download.  Because, well, let's face it; when was the last time you waited more than 30 seconds for a page to load?

In SharePoint 2013, there's a new feature that will make viewing images on mobile devices MUCH better.  It basically auto-sizes and renders images for different devices and stores them using BLOB cache.  You can even crop the images so they display differently on each device type.

The interface for managing these images is very slick and easy to understand.  Here's an example of the interface...

<a href="http://egroup.jasonmangone.com/wp-content/uploads/2012/09/sp2013_imagerenditions.jpg"><img class="aligncenter size-medium wp-image-7438" src="http://egroup.jasonmangone.com/wp-content/uploads/2012/09/sp2013_imagerenditions-300x203.jpg" alt="" width="300" height="203" /></a>

You can even crop the image, so it is not only smaller on each different device, but it's also cropped differently!

<a href="http://egroup.jasonmangone.com/wp-content/uploads/2012/09/sp2013_imagerenditions2.jpg"><img class="aligncenter size-medium wp-image-7439" src="http://egroup.jasonmangone.com/wp-content/uploads/2012/09/sp2013_imagerenditions2-300x203.jpg" alt="" width="300" height="203" /></a>

Not only is this used for images, but you can also use it for video thumbnail previews.  For more information, check out this post by SharePoint MVP Waldek Mastykarz: <a href="http://blog.mastykarz.nl/image-renditions-sharepoint-2013/">http://blog.mastykarz.nl/image-renditions-sharepoint-2013</a>

What enhancements in SharePoint 2013 for mobile devices are you most excited about?