1000ideen, et al...
If you want to use Media Gallery as an image management system for articles, it can support that today pretty well. With the current release, you can have a 'hidden' album that is only available to mediagallery.admin group. So, place your images you want to use in the articles in the hidden album. Now you can use the oimage autotag (or any auto tag supported by Media Gallery)to display the image in the article, there will not be a link back to the album, just the image with no href. Media Gallery will check if the source album is hidden it will not place a href around the image, instead just display the image in the article. This is true for all the auto tags Media Gallery supports.
Sam is correct that I want to phase out the oimage (which stands for original image btw) and get back to a couple of core auto tags with parameters to control what/how they work. For example, using something like
PHP Formatted Code
[image:1234123 link:no border:1 src:display]
would give you a auto tag for the media id 1234123 with no href link a border around the image and it would use the 'display image' as the source instead of the thumbnail image. All this will be available in the next release.
What Oliver is referencing is something he sparked where Media Gallery would allow you to show the thumbnail in a story or static page and instead of linking to the full blown Media Gallery album view or image view when clicked, instead it would simply give you a full view of the item without all the other Media Gallery stuff. Similar to what you see today with the standard image support in Geeklog. If you click the thumbnail, Geeklog shows you the full image. This would be very similar but would still wrap the image with the Geeklog header/footer and provide a navigation back to the story or static page. This is also a feature I hope to have available in the next release.
Let me know if you have any other questions or if I need to clarify anything.