The options available are increasing with iPad now having serious competition from Google Chrome or Android devices, Microsoft Surface and traditional laptops. Meaning the best decision for the school may be different for teachers to students or from year group to year group.
Cloud technologies are meaning different devices can be used to access the same content and resources with collaboration being the key.
The use of devices with keyboard for intensive typing and excel work in key stages 3 and 4 or the touch capability of a tablet in SEN can be taken in to account when deciding.
Infrastructure, internet connection, cost vs value, applications, collaboration, manageability, training and battery life are all areas that need to be looked at when making the all important decision on which device you are going forward with.
edde work with partners who will be able to take you on the journey to find your preferred solution and will be happy to introduce you where necessary!