what do you inner sliding? i don't see any scratching except the sliding gap became bigger,

All in all the build quality is not something we can complain about - the halves don't feel spongy, the device slides open and closed with ease, thanks to the spring-loaded slide mechanism. However, in three days it lost the smoothness of sliding action, it got a tad slower, with the addition of a clang, but we managed to find the explanations outright - the keypad is framed by a metallic inset, whose surface is patterned as well, in order to emphasize the texture of the material used. And the halves will always stick to this surface, and it gets scratched in no time. Well-visible abrasions emerge in four days of usage. Though it is not an issue from the mechanical point of view - the slider will remain good at zipping open and closed for a long while - this doesn't add points to the E65's looks. On the other hand, though, scratches can be noted only with the phone open.