 Hauser's Active Book company had been developing a handheld device and for this the ARM CPU developers had created a static version of their processor, the ARM2aS.Members of Apple's Advanced Technology Group (ATG) had made initial contact with Acorn over use of the ARM in an experimental Apple II (2) style prototype called Möbius.Experiments done in the Möbius project proved that the ARM RISC architecture could be highly attractive for certain types of future products.