Word reaches me that Maven have turned down one of the world's largest travel companies and one of the world's largest publishers as clients because they 'are too small'. It seems that my prediction that Yahoo! would take them downmarket was very wide of the mark.
In the meantime it seems that the company has won Virgin Media, the UK's largest cableco, as a customer, displacing the long running relationship with troubled Narrowstep.
So it seems that Yahoo! are using Maven as a platform for a major content play by aggregating through stealth.