Hi, I am thinking about getting an Ultrabook or a MBA (when they are refreshed) but am wondering how strong they are? For example what kind of damage can it take by being dropped? I mainly want a lightweight laptop due to cycling to uni through London, I know they are lightweight enough for that. However, if I were to come off my bike would it be destroyed or would it hold up? It would obviously be in a laptop bag/case. Would I be right in thinking the unibody design would be stronger than an Ultrabook? Thanks!