I've only had my device for 3 weeks or so, so please bear with me. I have generally been using this device like I did my N810 -- As an internet tablet. However, the last couple of weekends, I put the SIM card from my work phone into my N900. This weekend, I kept it in there through monday (today). Well, I noticed that when I am using the phone, specifically, it seems that apps other than the phone app get confused. For instance, I still had MediaBox open and got a call. Though I had the phone in landscape orientation, MB insisted on running "sideways" in portrait mode. I tried rotating to portrait and back, and it wouldn't change. I also had Xournal running, and it seemed to change at random. Thoughts? --vr