This is an wonderful Phone. The beauty of the phone is the underlying O/S- Linux. There are a huge lot of application and support on the net. If you are tech-savvy, you can even upgrade the O/S. There is sufficient assistance and step-by-step guide in the internet. You even can connect to this and use it as minimalistic linux system. Voice quality is good although network pick-up is smetimes bad(I compared with another brand in basements, elevators etc. also)
Now to the flipside. Camera is miserable. You get better camera-phone at a fraction of its price. The touch screen is highly unreliable.My touchscreen used to misbehave at times and I had big trouble even to call someone as the numbers can only be accessed through touchscreen. I had to power-cycle and recalibrate the screen many times to get it back working. It went completly dead after the warranty period. I heard many cases of touchscreen problems in this phone.
If the reliabilty of the touchscreen can be improved, this phone is a winner; hands down!