Excessive rounded edges, bright pop-colors and lots of plastic seem to me a staple of the 90s. CAM techniques were just starting to hit their stride, so the work from the period often feels like it's just a direct product of the software. Newson's work looks to me like it popped out of a rendering on a Silicon Graphics machine. Karim Rashid, Greg Lyn are easy references. There are many others I can't think of.

It's not just that his work fits the style, but that even his recent work still employs the same techniques.