Yes, you will see an old example I did way back on the flows site. Here is what I think my ideal would look like:
- Dedicated, known URL for flogger output
- Formatted JSON output - ideally including folding
- Ability to switch between a log view and a per node/per topic view so that you could see the latest log output for each specific node and/or for each specific topic. Sometimes this is a more useful view than simply having everything dumped in a long and possibly hard to follow list.
It is, of course, the last point that would really set this apart from the separate page view of the normal debug output. Along with the formatting features you are including.
Anyway, perhaps food for thought or maybe random twitterings - as always, feel free to ignore. 
