Inline display of attachments

Just in the process of evaluating JIRA, but I (and my users) would like inline display of attachments if possible.
Perhaps only certian mime types (jpgs/bmps/other images) ie for displaying screenshots/mockups, and only if the image fits sensible size contstraints (ie not bigger than a certian height/width or file size).

This may already have been requested, but I couldn't see anything when searching your issue database. It would save a lot of time to have the screenshot immediatley available rather than have to hit 'open' and flick between an image viewer and the issue record.