The first internship I got outside of Northampton was at Klout, the social media scoring startup. I was assigned to work on the front-end team tasked with serving up Klout.com. While I was there, we launched a completely redesigned version of the site, which kept me busy throughout the summer.
However, it struck me as bizarre that none of the product managers were remotely bothered that our website was unrepentantly terrible on mobile, being not just ugly, but actually impossible to use on mobile because of several key buttons' placement, size, and use of rollover states. I first convinced them to serve an interstitial offering to take iPhone users to the App store to download our free iPhone app, a move vindicated by the Mixpanel analytics.
Unfortunately for my ability to provide a live demo, Klout has since redesigned the entire Klout.com experience. They have again neglected the mobile user and do not provide a mobile site, but it was not an obstacle for their acquisition by Lithium Technologies in early 2014.