was reading a thread on here which promptme to change the settings on my Advanced Task Killer app. The only thing I changed was making it kill apps from every hr to everytime the screen turns off (which happens when u press the lock button on a Sensation) and requiredmy phone restarted to take effect. so switch phone off then on and now my home button as been turned into a "take pics of my phones current displayed screen" button. although handy I'd rather have my Home button be just that.
That is really bizzare. When I owned a Sensation, I had similar issues sometimes with app icons changing when I installed new skins but nothing that weird. I'm guessing that when some of the processes which were running in the background were altered, the phone went a bit haywire.