[geekmaster]

http://www.cowlark.com/kindle/combined.html

... The Kindle is a very fragile device. It's incredibly easy to crash; there's no isolation between user applications and the system user interface. ... Whenever you load a class containing static members, the memory used for those members will never be freed. Ever. ... This means that slow memory leaks over time that you would never notice on a desktop will slowly build up. ... you're very likely to see slow bit rot, where the device will slowly destabilise over time until it crashes and reboots, at which point it goes back to normal and then starts to slowly destabilise over time ...