In a bulletin from Priority Pass today they say:
Over 3,000 members responded to our survey on mobile phones and the overwhelming conclusion is that allowing passengers to use mobile phones on board will be a source of great irritation
Almost 9 out of 10 respondents (88%) said they would consider this to be annoying. Although 28% felt very strongly about this issue and advocated a full ban on mobile communications, 57% of the people who answered the survey felt that communications via text or email would be preferable to a complete ban. Only 9% of respondents felt that all usage should be allowed, even within clearly defined time periods.