Before I start sketching I like to look at a lot of designs to get inspiration for what I’m building. Here are a few resources I use.
A great article from Smashing Magazine. It focuses on the iPad but has great tips throughout. Something I like to read and re-read before I start a design. Good reinforcement.
Sometimes it’s great to start at the end and see how the promotion of the app on the developer’s Web site looks. I enjoy these sites to see how the design of the application influenced the design of the site.
It’s good to know who’s winning awards out there. Especially when the award is from Apple!