A purchasing aid logistics appliance that assists a purchaser with a shopping list generation, in-store product location, automated checkout, and financial management. The PAL is in the form of a battery operated PAL with touch screen display and multimedia input/output. The PAL functions as a fiduciary...http://www.google.com.au/patents/US20030130909?utm_source=gb-gplus-sharePatent US20030130909 - Purchasing aid logistics appliance