Since the last FW upgrade i've noticed Battery drain after i configured a Ad-hoc connection on my N900. I do not know if it is related to that or not, but since i upgraded the FW i had no issues with battery life, 2 days ago however i configured the ad-hoc connection, i was connected to my PC and averything ok, i disconnected, and after some time i started to feel the N900 unsually warm, i noticed then that the battery was almost empty. I rebooted and the battery lasted for the rest of the day, no more "warm" feeling in my pocket ... Today the same issue ... ad-hoc connected ... disconnect ... battery drain ... reboot ... now it is ok ... For a normal WIFI (infrastructure) this does not happen, neither for 3G. ALso one strange thing, in ad-hoc i have a lot of disconnections, almost every 3 minutes, but the power level is good ( the phone is in my pocket @ 50 cm from the PC) Anyone sensing the same problem ?