Every now and then i feel a slight heat blast from my N900's back side, most of the times it's so subtle that i would have dismissed it as sensory illusion if i could't repeat the sensation by placing my fingers there and stop it by moving away, other times it's clearly hot (not to the point of being painfull it's just clear it is much hotter than the surrounding air), often it seems to happen when it's doing somthing heav-ish , also when charging (or even just plugged in with green status LED) it gets hot all over, i can even feel the keys hot. I'm worried about when the weather heats up over here.....

Is it normal for it to be emitting heat like this? Should i be concerned?



ps: these last few days the temperature has been around between 10°C and 20°C according to the weather widget