I received the DayVue screen protector today and installed it. It easily fit - the width was perfect, but the length could possibly be one or two mm longer. Of course, if you try to get too precise a fit, it gets harder to install!
Anyhow, it works great and doesn't seem to have any effect on the touchscreen's sensitivity. The best part is that it is very clear and doesn't darken the 740's bright screen!
In summary, I would recommend this protector!
John