i saw the solstice in the store yesterday and it looks cheap in software and the plastic its self. I would choose the Xenon. I have the Samsung eternity and there are still big differences with the two phones from what I have seen with the Solstice
I would say the Samsung b/c its better you don't have to worry about a key board breaking there are more options with the samsung . The xenon is a boring phone the samsung takes time to get used to , but the camera is better and the recorder .