Handspring (HAND) was down 2.8% in early trading after the handheld computer company announced it would give $100 toward the purchase of a new Visor Edge in exchange for an older model Handspring PDA, in an offer available through its Web site.
Users can also collect the discount if they pass the older model to a friend, the company said.
Handspring is engaged in a brewing price war with rival
. Palm was up 0.8%.