Photoshop World Conference & Expo will be opening its Tech Expo to the Boston public for one day only from 10:00 a.m. to 5:00 p.m. at the Hynes Convention Center. During the Expo, more than 50 exhibitors, including Adobe, Microsoft, Nikon, Canon, B&H, Dell, HP, Wacom, iStockphoto.com will be showcasing their latest gear and services, and providing product demonstrations. In addition, four bonus classes, taught by some of the biggest names in digital photography, will be open to all expo attendees at no additional cost. To obtain a free expo pass (US$20 value) call 800-738-8513 or go to http://www.photoshopworld.com/ticket.