The first major facelift for IBM’s Personal System/2 line is expected this week – and after wrecking everyone’s Presidents’ Day holiday in the US in February by using it to make a major 3090 announcement, we hear that the company will not only not stage the launch on Monday – Memorial Day in the US as well as a holiday here – but may hold it on Thursday rather than Tuesday: the announcement is expected to put right some of the things IBM got wrong in the original launch – perhaps a fast 30Mb disk in the Model 40 instead of the 20Mb crawler – and a desk-top 80386 Model 70, perhaps running at 25MHz; whether the 25MHz chip will also go into the floorstanding Model 80 – currently 16MHz, or whether that machine just gets a price cut will depend on how many of the fast version of the chip IBM can get from Intel; there is gossip of cache memories tacked onto the Micro Channel, an 80286-based lap-top is on the cards, and a general tinkering with the line is likely.