The Yahoo Weather app is quite well done and I think one of the best weather apps on the iPhone. Apple couldn't have chosen a better weather app to "steal" from.
Apple likes Yahoo!’s Weather app so much they gave it a Apple Design Award. Their review:
“Yahoo! Weather stands apart with its simple, uncluttered, and beautiful visual design. This highly-rated app displays weather details with stunning photography based on time of day, location, and current conditions. Yahoo! Weather has great layout and typography, compelling animations, fast image processing, and clear iconography. This attention to detail means that in a saturated category, an app can rise above the crowd.”
