ThinkMac announced the immediate availability of its latest application, InstantGallery, on Wednesday. The application takes folders full of images and converts them into Web galleries. You can set thumbnail and image sizes, watermarking, themes, thumbnail cropping, add photocast information so iPhoto i06 users can subscribe to your images, and more. InstantGallery is available at the ThinkMac Web site, and is priced at US$15.