[epynonymous]

not if you're looking for a C++ developer, or not necessarily if you're looking for a performance tuning engineer...

the point is that it doesn't really tell you anything, i could be wasting my time on a phone call if i find out he was only writing python tools to help with packaging and deployment when what i want is a rockstar python developer to help create highly scalable wsgi compliant rest servers.

[rdouble]

It tells me he already got through Google's notoriously thorough hiring process.

[epynonymous]

granted--google is quite thorough--but it doesn't directly translate into this candidate being a match for your company based on motivation nor skill set.