I guess I must be the unusual one looking for the 'all of the above' catagory.
I have the 770, I have an iPod, I have an eee, I have a laptop and I have a smartphone.
I don't know what pmp means.
Having said that, given the choice I would probably get them all again!

Nothing touches the iPod as a music player (which is what I bought it as), and now it has the bbc iPlayer stuff, even better. The iPhone is no good to me as it isn't 3g and the contract is too expensive for what it is. The 770 was great going around the states on holiday, where there is more wifi and it connects to my nokia n73 pretty well. It is also handy for looking up the odd webpage, and it works connecting to the car well. I don't really see much of a compelling need to update it though, or I don't see that an update would give me much. The eee is a great device for controlling usb devices, and I have a usb 3G modem. It is a good one to carry round to hotels and the like, small and robust with a nice clear screen. Keyboard could be better. The phone is just the phone. it works fine, it has 750 minutes of talktime a month for not much money, and does the job.