A fantastic free Google product that gives you direct access to real world statistics. It plots graphs of the data for you and even animates the graphs to show how they change through time.
This is a good example of a school which formerly banned mobile devices utilizing smartphones in a pilot program in 5th grade math/science classroom. Lessons otherwise traditionally done in paper and pencil were carried out integrating the mobile devices. Looking to start your own pilot program? This school got new cell phones from HTC, a cell phone manufacturer and free connectivity from Verizon.
SIG1 context: teacher discusses benefits, exploration, mobility, connection, cross-curricular