Cambridge-based Tadpole Technology Plc will offer 5.5m new shares at 65 pence each, worth a total of UKP3.57m and apply for a full listing on the London Stock Exchange on Monday. Tadpole shares used to be traded on the Third Market until that disappeared. Tadpole confirmed that company co-founder, Bob Gilkes, has been replaced as non-executive chairman by board member, Richard King, a former director of the Graseby Ionics division of what was then Cambridge Electronic Industries Plc. Gilkes said he was leaving because Tadpole was going for a full listing. I am more suited to be the chairman of a small company. The board knew I was going to leave as soon as Tadpole went fully public. I’ve done all I needed to do, he said. Details of the deal under which Tadpole will design, develop and manufacture a notebook computer for IBM Corp based upon the Apple-IBM-Motorola PowerPC RISC (CI No 2,063), were due as we went to press. IBM will implement AIX Unix on the notebook, which will be assembled at Tadpole’s US arm in Austin, Texas.