For those of you who missed — or who really enjoyed — the January meeting about creating apps, Suzie Rodriguez and Laurie McAndish King will be teaching “App Happy,” a class packed with information designed to help travel writers and others understand how to develop and market their own mobile app. The one-day class will be held on Saturday, April 2, from 10 a.m. to 4 p.m. at Fort Mason Center in San Francisco. If you’re interested, write laurie@laurieking.com or suzierod@gmail.com and they promise to get back to you “pronto” with more information and the exact date and time.