I have to agree that the full-screen time-draining ads are not viable for a Business Calendar, regardless of the reasoning behind it. By all means, keep the small rolling ads along the bottom of the screen or alternatively charge a more reasonable fee to go pro. £6 is not an option when there are so many other options out there, such as aCal (which I used to use before BC and am now reverting to)... I'll keep an eye on Business Calendar though because, if you change the ad situation or make the pro price more reasonable, I'll certainly be back!