At the unveiling the new design on Friday, Mr Childs said the tower must be "simple and pure in its form, a memorable form that will reclaim the resilience and the spirit of our democracy".
These include the Excite Pure, Excite Pro and Excite Write, and while they share the same plastic design, 10-inch form factor, ports and Android 4.2 OS, they each offer something a little different on the inside.