After sending an HP 4150 to a friend in Germany , now a folding fullsize keyboard (not wireless) is in order. I purchased the Targus Stowaway Portable Keyboard PA840U, but have concerns about it being compatible. I read some places that the 4150 connects the same as the iPAQ 2215, 3000 and 5000 series. Read that here in fact. I also read that the 3000 series needed an adaptor from Targus. I no longer find this particular keyboard for sale at Targus. I'm not sure if I'm sending a keyboard over to Germany that won't work with the PDA. Does anyone know? Targus makes one bazillion keyboards, have I bought the wrong one? Thanks for ANY input here.