  The epoch of reionization (EoR) corresponds to a 'cosmic phase transition',
when the neutral intergalactic medium (IGM) becomes ionized by the first stars
and/or AGN. While the discoveries of Gunn-Peterson (GP) absorption troughs in
the spectra of the highest redshift QSOs, and large scale polarization of the
CMB, have set the first hard constraints on the EoR, the redshift and process
of reionization, and the nature of the first luminous objects, remain two of
the paramount questions in cosmic structure formation. Moreover, the GP effect
is such that observations of objects during this epoch will be difficult at
wavelengths shorter than about 1 micron. Hence, cosmic reionization, and the
formation of the first luminous objects, occurs in a 'twilight zone',
observable only at radio through near-IR wavelengths. In this talk I explore
studies of the EoR at meter through submillimeter wavelengths. I present recent
observations of the dust, molecular gas, and star formation activity in the
host galaxies of the highest redshift QSOs. These results have interesting
implications on the timescale for metal and dust enrichment, on the possibility
of co-eval formation of SMBHs and galaxies, and on the process of reionization.
I then discuss future capabilities of low frequency radio astronomy to study
the neutral IGM via the HI 21cm line, including imaging and power spectral
analyses of large scale structure in emission, and absorption studies toward
the first radio loud sources. I conclude with a summary of the VLA-VHF system
to study cosmic Stromgren spheres associated with the highest redshift SDSS
QSOs in the HI 21cm line at 190 MHz.
