How is the Build Quality? Call Quality? I had problems with the N1 and low Call Quality. Camera/Flash Quality? How is it with 2.2? Very Fast? You think it will get above 2.3? (even by custom roms?) Music/Sound Quality? Loudness? You can change the LED light? Like on the X10 and N1 (trackball) to red, blue, purple, green, blue etc? If you have used the N1, which do you like better? And why? Thanks in advance!