Hi there,
I also tried those modes for RHTML and wasn't too happy with them. Then, I found the excellent rinari project (http://rinari.rubyforge.org/), it's a little bleeding-edge, but in my experience it works great.
1) Get it by checking it out of SVN.
svn checkout svn://rubyforge.org/var/svn/rinari
2) Put something like the following in your .emacs:
; rinari mode (add-to-list 'load-path "~/rinari") (add-to-list 'load-path "~/rinari/rhtml") (setq auto-mode-alist (cons '("\\.rhtml\\'" . rhtml-mode) auto-mode-alist)) (require 'rinari)
3) Then either restart Emacs, or use "M-x load-file ~/.emacs" to reload your .emacs file
They've got some great integration with Rails going on in the rinari package, one of the ones I use a lot is extract-partial. To use this one, you mark a region in your .rhtml file, then go "M-x extract-partial", rinari will create a new .rhtml file with the code in your region and will insert a <%= render :partial => for you. Sweet.
yours, Steven.