I've noticed something weird when I am on a call - it's happened twice so far, and I'm curious if anyone else has experienced this as well. When on a call, my home button stops responding. I wanted to swap over to my calendar, but the home button gave no response when I was trying to do so (planning to hit home | then calendar shortcut). After the call ends, everythig starts working again. Seems like a software bug to me, has anyone else seen this?