It's a good idea. I personally do random dungeons before specific ones, so the addon already serves this purpose for me. However, I've been looking into your request and there are a few things I might be able to use to recognise this. I've been digging through Blizzard's new code, which is why work on Savedinstances has been quite slow lately.
I need to test it out a bit, bit I think I can reliably wait for the new LFG_COMPLETION_REWARD event (triggers when you see that new achievement-like reward panel pop up) and just check to see if you currently have the Luck of the Draw aura. I can double-check that you are doing the highest difficulty you can (normal or heroic).
It's a good idea. Any suggestions on how you'd like to have this status displayed? How about a new row displayed with your dungeons titled "Random Dungeon" with a Normal/Heroic indicator for each of your characters?
@zvifflemeyer and co:
Can anyone please confirm that I wasn't able to fix the minimap button issues in beta4? Zaphon's suggestion and this bug report are the only things holding back a stable release at this point.
Maybe just a column with "random daily" (and maybe a short version "R") and just a green "mark" if u have done random dail.
My working version on my desk at the moment has a much easier to maintain formatting system: just uses the date() function instead of trying to do everything manually. I'll be adding Day Only and Day Only (Short) date formats in the next version (eg. Wednesday and Wed).
If anyone has any ideas, or would love to have a particular date format in there, just let me know.
And yeah, good news about 3.0 compatibility. Thanks for that.
As a swede i would like to see dd-mm-yy or dd-mon-yy (mon = month trunched down)