I've got an anterior placenta and I didn't feel movement until after quite a few of the girls in my belly buddies group and even now I feel the big movements but not the pokey little ones. I thought that this was a lazy bubs in comparison to Yasin but when the midwife used the doppler we could hear bubs wriggling around; I just couldn't feel it.
AFAIK the only thing that is likely to be differant from a posterior placenta is, because babies often face the placenta its more likely to be a posterier presentation which can cause more backache in early labour so you might want to make sure your support people are well versed in back massage.