One sign that bentos are becoming trendy, if they aren't already, may be that they are being made into iPhone apps. There is of course the database app from FileMaker, Bento (which messes up searches for bento recipes!), which uses the divided bento box as a metaphor for organizing data. But there are a few apps that actually use the edible box of food we love as the main theme. Here I review three of them - A Bento Box: Virtual Sushi; Obento!; and Charaben.