@karam, the phone will lag ONLY IF YOU LOCK 125MHz, not if it is minfreq, I am using 125 as minimum on my n900 and have absolutely no problem to pick up calls. Not using speedpatch of course.

Just to make some things clear:

Today I unplugged the charger at 7:30. Had about 1 hour browsing while drinking my coffee connected to home wifi. After that switch to GPRS and went out. Four IM accounts connected all the day (Skype,FB,GTalk,IRC) and three mail accounts (2 POP3 and one gmail updated avery 2 hours). BT handsfree connected all the day. About 10-15 sms' till now. About 1-2 hours talking. Some chat using GTalk and Skype. About 1 more hour of browsing. Two power cycles ( I had to change the sim card to test something). Now it is 17:00 here and my battery meter is two bars bellow full. KP49 limits 125-900 SmartReflex on for both VDD1 and VDD2. Swap on compcache(80MB)/SD card. No speedpatch, no batterypatch. Period.