I doubt the Blitz3d product will ever get improved alt-tabbing behaviour, purely because it would (more or less) require half of BlitzPlus to be plugged into Blitz3d.
However, a certain other, oft mentioned product, bearing a similar name to that not so popular soft drink Pepsi Max, will be BlitzPlus with 3d plugged in, and would support it. So for now, go update yer manuals! ;-)
However, a certain other, oft mentioned product, bearing a similar name to that not so popular soft drink Pepsi Max, will be BlitzPlus with 3d plugged in, and would support it. So for now, go update yer manuals! ;-)