I've just upgraded to an MDA Touch plus. I've notices the build quality is not great really.
The slide out keypad has 3 scratches going vertically up the keypad like part of the internal mechanism is scratching the surface as the keypad is slid in and out of the phone. Also, the back cover has become very creaky since opening it twice since I got it. I do of course take care when I take the cover off.
The two slide parts of the phone don't seem to sit well together either as there is quite a lot of play in them as you can move it from side to side.
Apart from that, I love this phone!
Is yours the same??