Well, it lived in my jeans' pocket without any protection for two years. The nature of a mechanical device like this (hinge, keys) you can expect to be more fragile than your average slab-of-metal-and-glass phone. I am not easy on my devices, i dont treat them nice, so i am not at all disappointed with lasting it for two years.
One note: the keyboard hates sand. It really does. Do not. ever. take your gemini to the beach.
Initially I was not happy about the MediaTek chipset, but in the end I figure I don't really care - the performance is still good enough for me to get a new gemini after two years, but I'm not the average multimedia consumer I guess.