  The formula for the dark energy, derived by Padmanabhan in a recent Letter to
Editor (Class.Quantum Grav. September 2005, the formula given in its Abstract),
was actually derived 4 years earlier ourselves in astro-ph/0105245;
Mod.Phys.Lett. A18, 561, 2003. Among dozens of references in that Letter, no
quotation to our paper. Based on the same Zeldovich idea on vacuum
fluctuations, Padmanabhan derives it from scaling considerations, while we had
gone into more details and shown that the formula fits the observed value of
the cosmological constant if l=0 modes are relevant.
