According to Treo Central, Amazon is offering the Treo 600 for $149 after rebates. Treo Central didn’t notice, but PalmOne is selling the Treo 600 for $349 (after rebate) to new AT&T customers.

Treo Central thinks that this is an indication that the Treo Ace is getting closer. More likely, it’s a reflection on the Treo 600’s demand: PalmOne’s Treo 600 shipping page indicates that they’ve finally, after almost a year, caught up with the Treo 600 order backlog. Since they’re now building them faster then they’re selling them, it makes sense to start offering discounts.