The Treo 650 accessories are supposed to work on the Treo 700w, at least that was what Palm indicated. Sites may not be willing to say yes it works until they test a unit out (bad power = fried device). I would email them and ask if they plan to test and confirm.

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My PDA & SmartPhone History: Palm Vx; M505;TungstenT; NX60; iPaq 1910; I700; Treo 600; hx4700; MPx220; hw6515, Treo 700w, XV6700,, Treo 700p, Moto Q Black, Moto Q9h, BlackBerry 8310 & BlackBerry 8820, BlackBerry Bold, BlackBerry Storm 9530.