I noticed this once I upgraded to 1.1.2. I did the upgrade while I was in Italy, I notice that now when i get a text message I hit slide to unlock and it hangs up, and returns to the lock screen. The text message no longer shows as new even though I have not actually viewed it. If I receive a text and i just leave the phone, the preview goes away and I get no notification of a missed SMS, until I go to the home screen and I see a "1" next to the "sms" button. The problem went away as soon as I got back to the states. Now I'm in Brazil and I have the same exact issue again! Only seems to happen when I'm out of the country. Anyone else experiencing this???