John Maeda and simplicity

wanted to have opinions on the kind of work john maeda is doing. any personal interactions with the guy?

any other guy who does such work?

http://weblogs.media.mit.edu/SIMPLICITY/

Am intrested to know if simplicity is the next in thing as far as products are concerned. What has been the simplest to use product that u have used.Somethinbg that speak the language of human mental model and suggests its usability through it form or interface.