Ah, so Jakob Nielsen has finally leaped from web interfaces and has gone to full blown apps. For those who don't know, Jakob Nielsen is the man who started the usability movement in web design. He writes a bi-weekly web usability column at
. Nielsen's articles are great at showing things that may make sense to the designer, but not the user. He goes through each topic extremely thouroughly, and points out many details that you may not have thought of regularly. For anyone is in charge of managing/designing a web site, I STRONGLY recommend reading his column regularly; when I still did web design, I hardly missed an article in 2 years.