* One problem with new technologies is the length of time it takes to get feedback on their effectiveness. With Tablet PCs, feedback has come from an unlikely source, Ofsted. After an initial trial with 15 RM Tablet PCs early in 2003, Invicta Girls Grammar School in Kent bought a further 180 in September to give to every Year 7 student. A few months later, Ofsted inspectors observed: "Independent learning is well established in Year 7 lessons where Tablet PCs are used. Although there are some teething problems, the tablets make a significant contribution in English, mathematics, history, geography and religious studies."