FYI.  Per the 10Q, Bull and LEGO were one-time payments.

"Our other income and expenses for the three months ended August 31, 2007 and 2006 included equity in the earnings and loss of PDS. The investment is accounted for in accordance with the equity method of accounting for investments. Our investment in PDS for the three months ended August 31, 2007 generated a loss after expenses in the amount of approximately $1,201,000 resulting from licensing agreements for our intellectual property with Lego Systems and Bull for one time payments."