1. If I understand correctly, there are stable builds of the OC kernel, its only an issue of wether the n900 you have can take the different lower voltage profiles. I've never had issues due to overclocking, and mine has been OC'd from the 2nd day I purchased it, , I guess I'm one of the lucky ones with a processor chip that can take it. 2. I don't live in Canada or Ireland, I live in Malaysia down near the equator, where its hot and humid all year round,