When I trained as a hypnotherapist, I had a very "lively" conversation in class about some of the techniques that they were suggesting for hypnosis in obstetrics versus HypnoBirthing. Hypnotherapists who have always had an interest in child birth have been blown away by the techniques that HypnoBirthing offers and most have all subsequently become HypnoBirthing practitioners!!
The one criticism that some hypnotherapists have is that it is not individually tailored for the couple. However, most HypnoBirthing practitioners would identify if couple needed any additional support and work individually with them.
I am a hypnotherapist and a HypnoBirthing mum and did lots of research when I was pregnant. The books, CDs and videos that accompany the course are second to none. Since my daughter was born 4 years ago, HB has taken off in Jersey - there are now 5 practitioners and in 2006 15% of all pregnant women used HypnoBirthing. I do urge you to find out more - as the others mentioned, it is a whole education programme and is not just about the birth - helps with pregnancy, bonding, and relaxation after the birth. I still use the techniques 4 years on!!!
Warm regards and wishing you a happy healthy pregnancy and calm, comfortable birth,
Catherine Jackson
www.catherinejackson.net