Behavioural economics software
Nice little iPhone application highlighted here at Consumerology.
It is intended to help close the gap between action and reward which is the chief cause of procrastination.
Could be a good add-on to any workflow system - I'll definitely be downloading it (as soon as I get my iPhone, which ironically suffers from a two-month gap between placing my order and getting my reward).
A rather different approach to implementing behavioural economics in software is taken by my company, Inon - have a look at our CVM software, which helps you find better ways to sell more personalised services to each customer.