palmOne has dropped the prices for two of its handhelds. Both the Treo 600 and Zire 31 have lower prices. The Zire 31 sold for $149 when it debuted but the price has been dropped to $129. This is the first price drop for this model so far. With the recent release of the Treo 650 it is no surprise that the Treo 600's price has been lowered. Customers can get the Treo 600 for as little as $299 with a service contract. The Treo 600 originally sold for about $450 with a service contract.