"A nice product, rough edges."4.0 starson by rtdunham--2008
Pros: Places working better than faces so far.
Cons: There are some bugs, but workarounds for them.
Summary: Here's one tip: if you email a geotagged photo to a friend from within Mail app, they won't be able to see the location when they import that photo to iPhoto. You have to export the pic to the desktop, then "attach" to the email: do that and the geotag remains intact for the recipient. Props to my bro randy for figuring that one out for me.