Last I checked there is still no bulk upload method for a Drupal 7 image gallery. I had used Node Gallery for Drupal 6 very happily until it broke, afer which I decided I wouldn’t use a non-core gallery solution ever again.
Drupal 7 Image Gallery
My “core” gallery solution in Drupal 7 is to create a content type called ‘gallery’ and add an Image file to it which accepts unlimited values. Very quick and straightforward. I do spend a rather large amount of time tweaking where the image files are actually stored, though, so I can recover later on if I have an issue. I want all the images for a single gallery to be in a separate folder so that, if I had to, I could recreate using the file system.