A few suggestions

[sl968]

On category index and on Recent Pictures, Most Viewed, Most Commented, and Top Rated show the photo's title above photo. (Manually coded it in mine, just don't want to have to do it every time a new version comes out)

Make Ratings and Views both go on the same line. (Manually coded it in mine, just don't want to have to do it every time a new version comes out)

Place list of users galleries on gallery index instead of the current link which to go to the list.

Batch editing, moving, and deletion of photographs.

Show gallery link in user's profile. (Manually coded it in mine, just don't want to have to do it every time a new version comes out)

Ability to limit User's gallery categories and individual pictures to buddies only.

Ability to show Recent Pictures, Most Viewed, Most Commented, and Top Rated  boxes on main smf forum.

Ability to select to show Recent Pictures, Most Viewed, Most Commented, and Top Rated  on top, right side, and bottom of Gallery index, and main index if you do the suggestion above.

Show a random photo from user in the user's profile.

Intergrate photo search with smf forum search.

Add [MyGallery] and [MyImages] to the main nav bar for the forum.

Make picture title a required field.

Abiliy to make keywords required.

Option in edit to resize pictures useful if you have changed the maximum photo size instead of having to make the users re-upload them

That's about it right now. Comments?

Other than that it's a great script.

[SMFHacks]

Most of those can be done in the next version.
Intergrating the search with the SMF forum would be a little tricky depending on how I would do maybe show the picture results first before the message results.

Also generally if the Gallery edits the main forum files I will release it as a mini mod for those changes. Since not everyone would want those changes done to their forum and reduce conflicts with other themes and mods.

Check out this forum for some addons
http://www.smfhacks.com/index.php/board,18.0.html

[sl968]

Ability to move from site gallerys to user galleries and visa versa would be nice also.

[Blue Crab]

Here are a few of my suggestions:

Slideshow mode

Pop-up viewer window with <-- --> buttons when viewing images... currently pictures show up using the index.template so users have to scroll  down to see the full picture each time.

Bulk upload feature should allow the selection of multiple files instead of having to browse to each file seperately.

Ability to tag a single picture from a category which will be used as the thumbnail for that category.

I'm sure I'll think of more. 

[SMFHacks]

Slideshow mode

Good idea. That shouldn't be hard to do

Pop-up viewer window with <-- --> buttons when viewing images... currently pictures show up using the index.template so users have to scroll  down to see the full picture each time.

This one need a little more information on. Like where the popup window would appear on the image view page.

Bulk upload feature should allow the selection of multiple files instead of having to browse to each file seperately.

That is something I really can't do as built into the gallery.
I have a mod that does which allows you to select multiple images at time and it is java based and for admin's of the gallery only.
Found here http://www.smfhacks.com/index.php/topic,308.0.html

Ability to tag a single picture from a category which will be used as the thumbnail for that category.

Easy one to do as well.