Dusty,
It seems to me that the math is correct, I don't know what your knowledge level of Geometry or comprehension of scientific notation is, but it's not rubbish. Besides the paper has been peer reviewed and due to be published,
"How Weyl Geometry Solves the Riddle of Dark Energy " In Quantization Astrophysics, Brownian Motion And Super Symmetry PP 88-96 (eds F Samarndache and V Christianato, Math,Tiger Chennai, India 2007 Foundations of Physics Vol-37 no 3 (2007) 366.
"On Dark Energy, Weyl Geometry and Brans-Dicke- Jordan Scalar Field" To appear in the Global Journal Of Science And Technology( New Delhi 2009) Mod Phys lett A-17 (2002) 2095 Mod, Phys, letter A21 No 35 (2006) 2685.
This is only one of the possible explanations out there.
Dennis