Here is my list of cool iPad apps:
ChemDoodle
ChemDoodle allows you to draw chemical structures and view them in 3D. You can also connect it to your desktop version. It generates IUPAC nomenclature and simulates NMR data.
Elements: A Visual Exploration
First of all this is a great Periodic Table Reference. Second, it is a stunning living Periodic Table complete with sharp pictures of the elements. You can even use cheap 3D glasses to enhance the experience. Loaded with information and beautiful pictures this is a must for all chemists, teachers and enthusiasts.
This is the companion app for Elements: A Visual Exploration. This app comes with 79 videos of the elements. You and your students can see reactions that are hard if not impossible to perform in the classroom. If you have the Elements: A Visual Exploration app it will link with this app and enhance your experience.
NOVA Elements
This is NOVA…need I say more? This is the app that accompanies the NOVA program Hunting the Elements hosted by David Pogue. I highly recommend the show and this app.
Chemist
With this fun little app you can actually play with beakers, flasks, burners, chemicals and much more. It is fun to pick up the beakers and pour in the various chemicals. It is fun way to have your students perform those dangerous experiments in a completely safe environment. It is so much fun to place cesium into a beaker of water and watch it explode. You can also select from many different chemical compounds. This app makes you feel like you are working in the lab!