I just posted a new version of CG-Feedread up, that adds a few things.
Most importantly is alpha support for Atom feeds -- I've only tried two feeds so far, and I'm still doing pretty bare parsing, so I might not hit everything. And obviously, I'm still only pulling out some minimal fields.
Upon request, I added the ability to show timestamps (RSS2 [pubDate], Atom [issued]), in RAW text without modification. I may convert them to a normalized format at some point.
Also upon request, I added the ability to 'simulate WP posts', trying to match tagging to the WP styles. THIS is DEFINITELY only alpha-level, and WILL have varying success depending on your template changes... ;)
To accomodate the two different styles of output, and the possibility that you might want the ability to show a given feed in BOTH styles in different parts of your site, I now cache the WP-style and 'classic sidebar list style' generated html into two separate cache files, so the two caches can coexist.
Lemme know if I generated any bugs along the way! ;)