  We report here on X-ray and IR observations of the Anomalous X-ray Pulsar
1RXS J170849-400910. First, we report on new XMM-Newton, Swift-XRT and Chandra
observations of this AXP, which confirm the intensity-hardness correlation
observed in the long term X-ray monitoring of this source by Rea et al. (2005).
These new X-ray observations show that the AXP flux is rising again, and the
spectrum hardening. If the increase in the source intensity is indeed connected
with the glitches and a possible bursting activity, we expect this source to
enter in a bursting active phase around 2006-2007. Second, we report on deep IR
observations of 1RXS J170849-400910, taken with the VLT-NACO adaptive optics,
showing that there are many weak sources consistent with the AXP position.
Neither star A or B, previously proposed by different authors, might yet be
conclusively recognised as the IR counterpart of 1RXS J170849-400910. Third,
using Monte Carlo simulations, we re-address the calculation of the
significance of the absorption line found in a phase-resolved spectrum of this
source by Rea et al. (2003), and interpreted as a resonant scattering cyclotron
feature.
