Amdahl Corp has rushed to say that its 5890 family of IBMulators will support IBM’s new MVS/ESA operating system – but things get vague when it comes to when and how. Amdahl says it will announce the terms, conditions and availability of support after receiving and analysing IBM’s detailed specs for the new system but, as usual, Amdahl reckons that it was in no way caught out by the announcement and that relat ed development work was already under way ahead of the IBM launch.