[R-sig-ME] I can still use nlme instead of nlmer/lme4 right?

[David Airey]

I have a project to conduct simulations for which I must consider a  
nonlinear mixed model (dose-response, 4 parameter logistic model).  
Because I have the Pinheiro and Bates book, which does such a great  
job explaining things, whereas lme4 documentation is too thin for me,  
I'd like to stick with the NLME package for now. Is that in some way  
unadvisable?

Thanks,

-Dave