Over the weekend, I had a few hours to spend and finally added comment watching to RSS Bandit. The feature is pretty straightforward, users have the ability to mark an item as 'Watched'. Once in this state, an indication is made when there are new comments for that item. Determining whether there are new comments uses a number of mechanisms including polling the comment feed and checking the values of RSS/Atom extensions such as slash:comments and thr:count. I'm already getting a lot of use out of the feature to passively notify me of new comments to my blog
The only issue now is that there is a disagreement between Torsten and I as to what the menu interaction should be for the feature. I've currently implemented the menu option a submenu where you can select 'Watch Comments->On' or 'Watch Comments->Off' depending on whether comments are currently being watched for that item or not. See the screenshot below.
Torsten would prefer a menu option more like what Outlook Express where the menu option is a checkbox as shown in the OE screenshot below.
If you're an RSS Bandit user can you chime in with your opinion?