I think the Attachment Manager may end up being confusing to the end user. Most people want to upload a photo and they are looking for a button to do it. If you upload a photo that is too large with the Attachment Manager, the pop-up window gives you the option to return to the previous page (many users do not even understand the file size of their photos and doubly so with mobile devices). When you return, it is still trying to upload the photo.

If a user uploads a photo and ends up with something like ... 19572702800_b27b91bb9d_o (1).jpg (2 downloads) ... they will think there is a problem with our software.

I think most people would like to upload an image and see it dropped right in to the post. We have a good image uploader on our 7.5.8 forums (added by SD). The only problem is that it does not offer the option to rotate the image.

Don't get me wrong, I'm thrilled you guys are updating UBB.