...Wishing to help everyone (like me) that has a N900 (2104) very reluctant to be overclocked, AND for EVERYONE THAT THINKS that KP49 has STABILITY PROBLEMS.....

After a 3 weeks of stressssss test with intensive MAKE, video recording, phone calls, video calls, ecc ecc...

Here it is my kernel-power default profile:

/etc/default/kernel-power

# DO NOT EDIT THIS FILE - CREATE A COPY OF IT FOR CUSTOMIZATION
# minimum frequency to use
MINFREQ=125
# maximum frequency to use
MAXFREQ=805
# list of frequency configurations: each "frequency:volt,dsprate"
FREQS="0:25,90 125:25,90 250:35,180 500:40,360 550:45,400 600:48,430 720:52,520 805:56,600 850:60,600 900:60,600 950:60,600 1000:60,600 1100:72,600 1150:72,600"
SMARTREFLEX_VDD1=0
SMARTREFLEX_VDD2=1
GOVERNOR=ondemand
UP_THRESHOLD=95
SAMPLING_RATE=300000
IGNORE_NICE_LOAD=0
POWERSAVE_BIAS=0

FOR ME, with this profile, my device is ROCK SOLID, about 3days of standby or 24 hours of standby plus 8 hours of wifi connection with a ssh login.