It is indeed simple and effective. Using this plugin allows you to utilize the built-in Contact manager while maintaining ultimate flexibility in the layout of the information. It lets you insert the contact's image and lay things out however you like, unlike the module version from the same author. Just put the fields you want in brackets, like this:

{dgcontactinfo 33}
[image]
[name]
[alias]
[con_position]
[address]
[suburb], [state] [postcode]
[country]
[telephone]
[mobile]
[fax]
[email_to]
[misc]
{/dgcontactinfo}

and that's it! Any HTML you put around the items is kept intact! After trying and failing to get the built-in contact menu items to do what I wanted, I can't recommend this simple yet effective utility enough!

For a beta it works well. At the moment it's extremely bare-bones and has no features other than an inbox and the ability to send mail. No trash, folders, drafts, graphics--nothing. But it's kind of nice for what it is.

Looking forward to future versions--and maybe IMAP support!