Absolutely we tell people.
I still think that the term IVF is swept under the carpet or spoken about in hushed terms far too often. I think it's important to help educate people on IVF and ICSI. I certainly don't think it's a secret that should be hidden.
Our kids will be told exactly how they were created, and we have photos and journals of many of the stages we had to go through.
DH and I have decided that when we decorate our nursery for the bub we are finally pregnant with that we are going to put a reading tree in the corner, (always the plan) but we are then going to put 4 caterpillars in the tree and one butterfly flying to symbolise our 4 embryos that never made it past implant and the baby that did.