Also... OSX comes with an application called "Image Capture" that can also retrieve images and video from your iOS Camera Roll.
Yep, I find this a simple and fast way to backup my camera roll (Photos and Video). It's just about as easy as mounting a device as a drive.
Fire up Image Cap, attach phone, select location (any drive/folder), click import all. You can also gen up web pages from the import, PDFs, import to iWhatever, mark imported files and auto purge, review the images easily (also shows the EXIF data).