“No, that’s not a typo. HDML is the so-called handheld device markup language that allows you to make your Web site portable: People can view it on their mobile phones, pagers, and other tiny devices. Needless to say, the average person is not going to want to research her dissertation on Keatsian animal imagery on a 4-by-12-character screen as she walks to her car, so the language and browser specifications focus on small-scale transactions: stocks, sports scores — you know the type. And now that compliant wireless phones are becoming more widespread, you can use HDML to propagate your tidbits of information to the world.”