Airport Express base stations disorder, a follow up

Here's a situation point about the one year and more Airport Express base stations disorder we've already told you before.
For starters, we're still getting testimonies everyday from people whose base station suddendly stop working. The symptom are always identical to those we described earlier.
Ever since we asked for testimonies, we noticed that apart from a few exceptions, breakdowns occur in countries using 220 or 240V power. It is probably the obvious main of this phenomenon, as noticed earlier on the first G5 iMacs.
We keep collecting testimonies and go on with our investigations.