I have two suggestions to make this an awesome application (it already is, but these would make it even better)
1. Be able to view who's logged in to the Administrator side, not just the Site side of things. See what pages in the Admin side they're working on.
2. The popup window that lets you work in the Admin side of the site needs to be either bigger, or resizeable so that there's actually room to do stuff without scrolling around, and especially necessary if you're using other than a standard Admin template for your site.
And a third idea, although I don't know how practical it is... If you've assigned a key for JAdmin to a user, a notification or alert button of some sort on the Admin control panel letting them know where to download the JAdmin interface and prompting them to download their user key? Like "You've been given access to JAdmin. Click HERE to download the desktop software, and click HERE to download your key." Kinda like how Akeeba backup has their alert button to remind you that you haven't backed up your site in a while? But one that checks to see if the logged in user has a key assigned? Nothing too obtrusive, in case they've already downloaded their key, but something noticeable enough to catch their attention when they log in if they haven't seen it before? Maybe a "Click here to dismiss this message if you've already done this".
#3 is just a wishful maybe type thing. But the other 2 suggestions I have above are things that I really could use daily. Especially #2, because not being able to resize that popup window just bugs me.
Thanks!