Just about the most interesting networking announcement at the Business Computing show at London’s Earls Court was that Cambridge-based Nine Tiles Ltd is cashing in on the bandwidth crisis facing Apple Computer Inc Macintosh users, especially in the pre-press world: the company has teamed up with Macintosh software developer Neutral in order to adapt its proprietary 102Mbps Coronet local area network for the Apple machine – and it is no trivial task according to the developers, since Coronet’s buffer-insertion protocol makes it difficult to map to AppleTalk; nonetheless, the partners claim that a prototype will be working at the forthcoming Mac User show.