The rest of the article can be found at http://www.catapultmagazine.com/first-world-problems/article/losing-a-cell-phone-losing-perspective. I also recommend follwing the links to the other articles. Shawn talks about inner-cities and hospitality in other cultures, both topics I find important. And Deb is an old friend of mine - her article also discusses the challenge of first world assumptions and expresses well the real difficulties of privilege.
update: another article that expresses well the challenges of first world problems is: http://blog.christianitytoday.com/women/2012/11/the-problem-with-firstworldpro.html