When Apple's smaller iPad debuts tomorrow, the Cupertino-based company will make a special point of focusing on the device's potential for educational use. Apple is hoping to use the lower-cost iPads to make a big push in the education sector and thereby grow its already existing lead in the tablet market. In preparation for the focus on education, Apple is reportedly readying an update to its iBooks feature with a streamlined authoring process, making it easier to produce e-textbooks.