Consider updating federal websites to incorporate responsive web design. It allows the arrangement of your content to change to fit the browser screen.
Imagine a seamless user experience across federal websites and across a wide range of platforms.
With responsive web design you get the same content on a laptop, a tablet, or a smartphone and it is displayed in a way that best suits the device you are using.
This would be a bold step that saves time and money by eliminating the need for a separate mobile version of a website and it would prevent a two-tiered user experience.
One note of caution: Does this affect the accessibility of the website (Section 508). In theory, it shouldn't but I don't know. This is uncharted territory for me.
For more information see: http://coding.smashingmagazine.com/2011/01/12/guidelines-for-responsive-web-design/
You can see it in action - online news websites and the Obama campaign website have already implemented it:
Just resize the browser screen on your desktop or try opening the page on a mobile device. For example: A smartphone might have a one column display, a tablet might have a landscape or two column layout, your desktop may have a three or four column layout.