Usability, the iPhone, and Fitt's law

I just read a great iPhone usability review on the Humanized Weblog. Interface design interests me, and Humanized has a ton of really cool ideas for creating humane, usable, intuitive interfaces.

Also on the post was a discussion on Fitt’s law and the way Apple designed multi-level lists on the system. I found a link on the Wikipedia article to a Microsoft blog discussing the implications of Fitt’s law in interface design for Windows and Microsoft Office.

Very interesting reads.