Post summaries for older posts and emails?

Some blogs, like DCist, now show a more condensed version of posts older than the last few. Should Greater Greater Washington adopt that system? I’ve created a script to generate one possibility here. Should the home page look like that? Are the summaries too short? Too long? Not colorful enough?

Also, I’m working on setting up a better daily or weekly email. The current one from FeedBurner lacks much of the formatting; also, some people (like government officials) have asked for regular emails. Would you prefer an email with all posts full size, all in summary form, or a mix? Do you think your answer would be different if you weren’t a regular reader of blogs?