  We have attempted to analyse all the available data taken by XMM-Newton as it
slews between targets. This slew survey, the resultant source catalogue and the
analysis procedures used are described in an accompanying paper. In this letter
we present the initial science results from the survey. To date, detailed
source-searching has been performed in three X-ray bands (soft, hard and total)
in the EPIC-pn 0.2-12 keV band over ~6300 sq.degrees (~15% of the sky), and of
order 4000 X-ray sources have been detected (~55% of which have IDs). A great
variety of sources are seen, including AGN, galaxies, clusters and groups,
active stars, SNRs, low- and high-mass XRBs and white dwarfs. In particular, as
this survey constitutes the deepest ever hard-band 2-12 keV all-sky survey, a
large number of hard sources are detected. Furthermore, the great sensitivity
and low-background of the EPIC-pn camera are especially suited to emission from
extended sources, and interesting spatial structure is observed in many
supernova remnants and clusters of galaxies. The instrument is very adept at
mapping large areas of the X-ray sky. Also, as the slew survey is well matched
to the ROSAT all-sky survey, long-term variability studies are possible, and a
number of extremely variable X-ray sources, some possibly due to the tidal
disruption of stars by central supermassive black holes, have been discovered.
