I know contacts containing the same email address can be merged when importing contacts. It would be great to have the ability to merge contacts (merging histories also) as an "Other Actions" menu option.
It is not uncommon to have 2 records for the same person, but with different email addresses. The person that loads the contacts may not realize the contact records reference a single contact with multiple emails until they review reports for a campaign.
I feel my reports would be more accurate if I could merge contact records.