you can repeat music i got same phone and i cant repeat it 2 just dowloand a music player on your phone and add it there
If you have a micro SD card you could connect it up to computer and put some on or use the USB plug that is used for the charger. Hope this helps :)
The Xperia X10 is much better than the X8 specially after the Android 2.3.3 update is released for the X10,
Yes
The x8 is smaller but thicker on the other hand the arc is longer but thin
yes it does
Yes, it is.
yes
because it is useless
Yes, it is downloadable from the Android Market.
nice but internel momery is very low
Yes, android market, and you need credit or to be on contract.
There are many different ones, depending on your phone.