Yesterday while I was using the N900 a lot and had several applications running I got a phone call. I did not hear any ringing, and only after half a minute or so, the N900 managed to display the name of the caller on the screen. No Accept or Reject buttons were visible, and tapping the area where Accept is supposed to be had no effect. Then I got a missed call notification and the device hang just like the 770 used to do when out of memory.

After rebooting the N900 I checked the swappiness value and reduced it to 30. Let's see how it will perform. I'm really surprised that it was set to 100, while Diablo on N8x0 has a swappiness of 1.