I had been behind on my Eclipse upgrades when I upgraded to Eclipse 4.2.0 a couple of months ago. More improvements to an already fresh, crisp, interface. Of note, this is the first time I have used the repository packages:

yum install eclipse-platform eclipse-egit eclipse-epic \
eclipse-pydev eclipse-phpeclipse eclipse-wtp-webservices eclipse-shelled

No sign of problems, and much easier than cobbling together all the plugins I need from their various install sources. Very impressed.