Adobe has released a slick, new version of their Kuler website. Kuler is a fantastic way to generate palettes of colors and the Kuler community gives you a way to share and search for palettes used by others.
In addition, Adobe has released a new Kuler iPhone app for capturing color palettes on the go, even using the iPhone's built-in camera to grab colors from the real world.
Through the Kuler website you can download these palettes as Adobe Swatch Exchange (ASE) files which can be dragged into Curio's mind map inspector popover for instant branch coloring. It's a slick way to produce amazing looking mind maps.