Tetra Business Systems of High Wycombe, Buckinghamshire has given a preview of its top-end version of Tetraplan, Chameleon – so called because of its boasted adaptability: Chameleon is a 17-module accountancy package designed for 32-bit Unix-based machines and will be launched at the Which Computer? show on the Compaq 286, the Convergent Mightyframe and the IBM RT Personal 6150 at the daunting price of UKP1,450 per module – that’s close to UKP25,000 if you want the lot.