This fun little app lets you choose, mix, and match your photos for a unique slideshow in which your photos are converted, stroke by stroke, into a painting. The results are entertaining to watch.
If you're looking for a visual organizational tool for basic ideas, this is a great option, though you'll need to commit to a $10 in-app purchase to make full use of the program. Users who demand more detail in their brainstorming tools should take a pass, though.
For detailed weather information delivered directly to your iPad, it's hard to beat this app from Weather Underground.