  We summarize our recent work on supergravity backgrounds dual to part of the
Coulomb branch of N=1 theories constructed as marginal deformations of N=4
Yang-Mills. In particular, we present a summary of the behaviour of the heavy
quark-antiquark potential which shows confining behaviour in the IR as well as
of the spectrum of the wave equation. The reduced supersymmetry is due to the
implementation of T-duality in the construction of the deformed supergravity
solutions. As a new result we analyze and explicitly solve the Killing spinor
equations of the N=1 background in the superconformal limit.
