I can probably make the timeago include a mouseover with the specific date/time.
Yes, I'd like to see this too. I've already tried mousing over that text to see if the date pops up :-) That being said, I'm not convinced that "five years ago" is more helpful than just saying "2009/11/29", especially because I find the date-rounding code on this site to be counter-intuitive (seems that it will say "four years ago" up to 4 years, 364 days in the past, before it flips over to "five" the next day, and minutes seem to get rounded to "an hour" at the 45 minute mark).