Nobucks, I have reviewed the published Treo specs vs the PJB-100 and find them to be almost identical as far as analog output (audio) specifications are concerned. As far as the digital circuitry (decompression/conversion from digital to analog), I have yet to see specs for either product. (Although I'm sure that they must exist somewhere.) The availability of multiple codecs in the Treo is a big advantage over the MP3-only PJB-100, as each codec has its own particular characteristics which could lead to better peceived audio playback characteristics than the MP3 codec alone.
Hopefully a thorough technical review of the Treo will appear soon and confirm what we suspect: that EDIG has created a superior player while minimizing the hardware requirements for same. Although software can be costly to develop, the hardware and assembly labor ultimately accounts for the bulk of a player's cost. By reducing the hardware, Treo also achieves savings in assembly costs.
Always tell the truth. Then you'll never have to remember what you said the last time.