Hmmm... not entirely accurate, but the gist is very true. Benedict has named some Bishops in some significant dioceses, but has named none voluntarily: He has allowed some coadjutors appointed by John Paul to take over diocese, and he filled a couple vacancies which had already been filled, and one created by a death. But he has not created and subsequently filled any discretionary vacancies.
...In fact, on Nov 10th, Walter Nicklaus of Sioux City became the first Latin-rite American bishop appointed by Benedict since Walter Hurley on June 21. All 3 bishops apointed by Benedict filled vacancies created during John Paul's era, although three coajutors succeeded, including one appointed by Benedict. There are now 13 sees headed by bishops over the age limit. Two days before John Paul died, there were three.
When Benedict starts naming bishops, he will have a very fast impact: Two of America's seven Cardinal Archbishops are now over the age limit. In five months, there will be a third.