Printing
At the moment AO has not many printer features. That will be fixed in a month or so.
Address Office prints:
However you can take the most of it if you export the addresses from AO and then use one of your prefered application to import them: Appleworks, Open Office, Star Office, Word, Excel, etc. AO and all other main programs can handle very good tabulator separated data text files (.txt file extension).
There are many text editors you can use to make your own "Template" for labels and letters for making mailinglists. There are also a lot of email mailinglist applications that can handle AO-exported addresses.
Be sure you will get always the best results with your own personalized templates, if you are using AO or any other type of Address Book. Rarely developers can consider all the 1000's printer differences. In the next releases we will add some "template" examples for the most important applications.