I've had this phone two weeks. A few times, when just going through the menus, I've gotten the "blank" screen mentioned previously and wondered "what happened.".So far, I don't think reception with Cingular is quite as good as I was gettng with the Razr.Putting it in or out of my horizontal belt case opens the camara lens twist door on the back of the unit. This in turn, for some reason, deactivates the "keys locked" feature which is a pain because when closed, the flip open keyboard sticks out from the rest of the phone and the slightest bump starts things happening.FM radio will only function with wired headphones as it needs the wire for an antenna.On Razr, during a call I could push a button to activate speaker phone. On this phone you must go into a menu during the call and select the appropriate two options. This seems to be a step backward in functionality. Sony support confirmed there is no other way.I like the way the software handles contacts, calendar tasks and all other data entry. Easy to input and access data in a variety of useful ways.For me, the size and weight of this phone is perfect as before I could not accept carrying around the Palm and Blackberry sized units.Ranking high on the list of reasons I made the move was the Wi-Fi capability. I haven't tried this yet as my router is on order. If it works, it will be very useful for me.Bottom line, all the phones I've had before have had inconveniences to get used to. The Sony P990i is no different, but I don't see any show stoppers.I'm glad I made the purchase. Biggest advantage is total functionality in a good looking "regular" sized phone. (No question, it is a looker)UPDATE, October 31: I take everything negative back. In the last four weeks I've learned more about how to use the phone and have to say it is awesome. No complaints.