Well that's a first - Google currently returning an error instead of seach results.
Update: now the subject of a BBC report. Looks like a myDoom mutant is hammering Google here in the UK. Sadly reported on the Radio 4 19:00 bulletin as 'Google is suffering from a virus attack' which gives the mistaken impression that Google runs Microsoft software :-(
Update: an explanation from Google isn't that impressive - i got the error from work and home, as did several others in the UK.