Tutpup would work great for a math station. Kids could really learn their facts using the games on that website. I also think they would find it fun to compete with other kids around the world.
Also, learning games for kids would work great for a literacy, math or social studies station. Kids could visit the netbooks when independent work is finished and explore other topics through this site.
As far as Apps for the i-pads, I downloaded the cursive app, third grade math app, solar system game, dragon dictation, and more. The kids love using the iPads. They are having fun and learning at the same time. I think it is important to tie it to the objectives, so that it enhances student learning. The technology serves as an additional resource for learning the information.