I just did testing updates for R 2.6.2 (and a rpy rebuild to match) for
F-7 and F-8.
Please test them out and give the updates positive karma if they work:
https://admin.fedoraproject.org/updates/F7/pending/rpy-0.4.6-24.fc7,R-2.6...
https://admin.fedoraproject.org/updates/F8/pending/rpy-1.0.1-3.fc8,R-2.6....
Thanks,
~spot