You should check out http://www.bubbabrain.com ---- works well on IWB and teachers can create their own games
Braineos is one of my favorites. You can create your own online Flash Cards, would work great with Vocabulary. Then you can take Multiple Choice Tests with them, play games with them, or simply practice them, all online.
Students cannot lose them, and you can easily share them on your school website. Pretty awesome and simple site!
Here is my example of a a Braineos Review I made about Computer Hardware Vocabulary. This is a practice multiple choice test. If you click on the Arrow next to the title, you can see several other options of what you can do with my vocabulary!
sound good. I look forward to seeing the new version...