iC (OS X) 2.0.1 (Mac)
Source: MT Software
iC is a LAN based in/out board and memo server combined into one easy to use application. Receptionists can see at a glance who is in, or if they are out, when they are expected back and how to contact them. iC is not limited to tracking people. It can be used to "check out" equipment, and resources, such as vehicles, laptops... virtually anything that you need to track. With iC, users can send memo's to each other, eliminating the need for paper based memo's and messages, which, from time to time, are misplaced.