Tagged ui:
Pepsiprefresh
Well executed, from top to bottom: pepsirefresh.
Boxee
Love the menu on the Boxee site. The vimeo introduction at the top was also one fine piece of ui-artness.
Another potential tablet app
Apple slate concept video showing a potential IKEA app. The tablet thing is probably going places.
Web forms design guidelines
Really nice writeup of studies conducted by the ambitious CXPartners: Web forms design guidelines: an eyetracking study | cxpartners