Hi, it's been a long while since the 650 debuted and I'm wondering if there exists any utility that disables the auto-switch to phone behaviour when on call?

Each time I am on a call and want to log notes on the memopad, I consciously keep worrying that the active app onscreen might just automatically switch to the phone app... and so I keep making screentaps/5-way movements just to keep the memopad app active.