The revision A TAP-28 boards were received in October, 2010. Minor changes were made from the original version to improve layout and enhance usefulness.
The User's Guide has been completely revised.
TAP-28 Rev A User's Guide
available by request for use under the terms of the Creative Commons 3.0 sa-nc-by license. Under the terms of the license, you are free to make boards for your own use or to make boards for commercial use as a component in a larger system. You are not allowed to make and sell TAP-28 bare boards or assembled boards.
TAP-28 boards are offered here at a fair price that is cheaper than they can be commercially made in small quantities. We are able to offer this price by making a large quantity of boards. The boards are offered here as a service to the PIC user community.
Documentation for the original version of the TAP-28 may be found here.