Hi: Human Interface by Multitouch Barcelona
http://gridpak.com - The Responsive Grid Generator
The concept of permanently placing content on a web page for a single browsing width or resolution is becoming a thing of the past.
“Pattern Tap aims to be the best resource for examples of specific design and user experience patterns on the web. The examples should provide an education in what is working well on the web and why. It is a communal effort toward a common goal of improving the intelligence of our interaction design industry.”
Mobile UI Patterns
Great website for comparing/contrasting patterns seen in mobile applications.
Stainless Steel iPhone UI kit (via UI Stencils)