Are you using the customizeable Alligator and Grasshopper Apps developed by Innovative Mobile Apps? They are among my favorites for students learning basic vocabulary and emergent literacy and numeracy skills.
They have just announce their new Action Words Touch and Learn app compatible with iPad and iPhone for free. Action Words provides clean pictures of verbs or actions of people within a choice making activity for students. One of the (many) strengths of the Alligator and Grasshopper apps are its clean photos depicting individuals of all ages, making the content or intended subject clear but allowing generalization of those concepts withing context of the images.
Here are a few clips of Action Words app: