I appreciate the comments - one clarification though - I am used to it - I can get around it very quickly - it's just that the swipes and other gestures are not as smooth as I had anticipated. I'll upgrade the OS and see if that helps.

I use the lock key all the time - sometimes when I place it somewhere or set it down I may not lock it and then I inadvertently hit the top right corner and in few cases touch it somewhere again that turns off the radio.

If I use my phone with my left hand and hold it a little bit away from my ear I sometimes inadvertently activate the speaker phone - then i have to look at the phone - wait for the screen to appear and put it back on handset.

Little stuff like that - I did just try changing the touch settings to see if that helps.

We'll see.