This aptly named little iChat utility allows you to view all your past iChat conversations.
Logorrhea opens up your saved iChat logs and lets you browse through to take a look at past conversations. Although you can browser by keyword, buddy or date, we found the search function a little bit counterintuitive as in the end you often need to skim through the list of results to find the conversation you want. The bottom part of the interface will display your conversations in full, while the top displays the search results.
iChat doesn't need to be running for use to use Logorrhea, however you need to make sure you haven't erased your iChat logs to be able to use it. Overall it's a good utility to have as you might pick up things you in conversations you forgot or simply remember enjoyable chats with your friends.
Although the search function is fairly limited, Logorrhea is a good little utility to search for and read all your old iChat logs.