Weblogs Inc. blogs (such as Engadget) include a READ link on the post, but do not also include this on the syndicated feed. I'm not suggesting this is for sinister reasons like some, because I know that Jason is normally a crusader against ethically questionable practices.
The fact remains, however, that there is still no attribution in the feed, despite Jason's public acknowledgement of the problem. I can't imagine it's anything more than a minor change to the syndication template, so, taking a page out of Jason's playbook, I'm calling them out.
If you want to be seen as a leader of ethics in this space, you need to set the right example and maintain the highest standards. At best, this is the equivalent of providing partial feeds. At worst, if you think like Tyme, it's misappropriating others' content, at least for the significant percentage of folks who read via aggregators.