Having announced bidirectional integration with ArcSight in late 2010, NetScout now looks to carve out additional market share by flexing its integration muscles.

Will 2011 see the unification of vulnerability management and penetration-testing tools or will the convergence simply be a stepping stone to portfolio player M&A activity en masse?

What can we expect to see from vulnerability management and penetration-test vendors as the system and architecture landscape changes?