[8][3] He was quoted as saying, "If there is a simple, easy principle that binds everything I have done together, it is my interest in people and their relationship to things.

[11] Moggridge returned to the US in 1979 to open another firm, called ID Two, first located in Palo Alto, California.

This was the first portable computer with a display that closed over the keyboard, a patented innovation that GRiD licensed for many years.

[6][13] In 1982, designer Mike Nuttall joined ID Two from the London office and worked on another portable computer project, the WorkSlate, for Convergent Technologies.

Because of the potential for conflict of interest, Nuttall left ID Two to form his own firm in Palo Alto, Matrix Product Design.

In 1991, Moggridge became a co-founder of IDEO, with David Kelley and Mike Nuttall, as all four firms merged into one.

[8] Moggridge was given a Lifetime Achievement Award in 2009 at the National Design Awards, in a ceremony at the White House, presided over by First Lady Michelle Obama[7] The Industrial Designers Society of America (IDSA) named Moggridge a Fellow in 2006.

"[28] Moggridge followed this in October 2010 with Designing Media (The MIT Press, ISBN 0262014858), another compilation of more than 35 interviews with experts in various media, new and old, including Mark Zuckerberg, Chad Hurley, Tim Westergren, Ira Glass, Craig Newmark, Hans Rosling, and DJ Spooky.