  I summarise recent results on multi-wavelength properties of distant lensed
galaxies, with a particular focus on Herschel. Submm surveys have already
resulted in a breakthrough discovery of an extremely efficient selection
technique for strong gravitational lenses. Benefitting from the gravitational
magnification boost, blind mm-wave redshifts have been demonstrated on IRAM,
SMA and GBT, and follow-up emission line detections have been made of water,
[OIII], [CII] and other species, revealing the PDR/XDR/CRDR conditions. I also
discuss HST imaging of submm lenses, lensed galaxy reconstruction, the
prospects for ALMA and e-Merlin and the effects of differential magnification.
Many emission line diagnostics are relatively unaffected by differential
magnification, but SED-based estimates of bolometric fractions in lensed
infrared galaxies are so unreliable as to be useless, unless a lens mass model
is available to correct for differential amplification.
