I'm very happy about the stability of my n900. But there is even more: The phone! There are so many people saying that the phone of the n900 wasn't good. I'm very happy about the phone. Even if the n900 is very busy it always responds to phone calls. The only thing: If the n900 is used intensively it becomes irresponsiv. I restart my phone every morning (I've installed the "restart" option in the power menu).