I just wanted to say that there is a person here ThanksgivingMom who used safe haven. You might look up her posts here on the forums.
HERE and
HERE
It IS an option, however, there are certainly some very large drawbacks (i.e. not getting to choose the family, a closed completely anonymous adoption so no photos or contact). The birth could be complicated...would a hospital treat you if you refused to give your name? Would they broadcast it on the news looking for relatives?
To me it seems like there must be a better way, but I don't think the person who brought this up is awful as has been hinted at, any more than I would think ill of a mother who chose it as a solution. The sad fact is there are situations that this may be the only way.
That said I am in no way suggesting that this is what you should do under these circumstances. I simply wanted to point out the story of someone whom I personally find to be very courageous telling her story here on the forums and some of the very large concerns I would have about using Safe Haven as an adoption plan.