B's heard that some governments (India and China I think), are bootstrapping journals as part of a general endeavour to raise their scientific profile. That's likely to result in a lot of journals with, initially at least, poor impact factors and relatively unsuitable editorial boards. I guess the idea is that some of them, at least, will rise above the crowd and become important but, in the meantime, it does sound like there are going to be a lot of rather "grey" journals out there. This is the first editorial board invite I've had, but in the past couple of years I've had a number of invitations to submit to various journals or books published in India, some of which would have charged fees for the privilege and all of which have suggested minimal peer review would be involved.

I don't know if this is one of them, there are a couple of grammatical errors in the email which make me think it was composed by a non-native english speaker. But there's no reason it shouldn't both be a scam on the open-access fees and from a publisher based in a non-english speaking country.