It looks from the Tom Daley threads like a lot of people weren't aware of what commercial surrogacy is or why any feminists would have a problem with it, or both. So I thought it'd be useful to share some links I've found informative about the issue. Please share others!
Katha Pollitt: The Strange Case of Baby M (this is from 1998, and it is brilliant. "Goods can be distributed according to ability to pay or need. People can’t.")
Julie Bindel: Commercial surrogacy breeds exploitation, abuse and misery
Julie Bindel again: India's surrogacy clinics
Katja Ekis Ekman: All surrogacy is exploitation - the world should follow Sweden's ban
Regula Staempfli: Surrogate motherhood is not work, it is exploitation
Glosswitch/Victoria Smith: The feminist history of surrogacy: should pregnancy give a woman rights over a baby?