Since Apple unveiled an overhaul of its iPod line-up about a month ago, Apple shares have climbed more than 20% – hitting a new record high of $171.11 yesterday. With Google flying through $600 (now $617) and Research in Motion touching a 52-week high of $118.80 last year, it looks like investors have caught tech fever and/or they are gravitating to high-profile, consumer-focused tech companies. Update: The Wall St. Journal has a story that suggests the tech landscape is looking a lot more like 1999.