Bing for iPad's weather feature is pretty standard, but the weather maps are a nice touch. They include satellite images, regional temperature readings, and Doppler radar.
Maps
The maps function is similar to the native maps app on iPad, but it also includes bird's eye and aerial views. Street view is not available.
Movies
Yep, Microsoft still thinks movie search is -- big enough, at least, to get its own section in Bing for iPad. The feature includes trailers for new movies and listings for local theaters.