Hi, I am going to buy a n900 to replace my old and trusted n95 and after seeing many videos about it, i have a small question: Can it be configured to only connect using WLAN and not connect using gprs/3g when WLAN is not available? The reason is that i dont really have a data plan (too expensive) and I have wifi in both home and work (which is where i use internet on the phone mostly). Thanks in advance.