Imperva's Tal Be'ery has an interesting and positive perspective on Google's acquisition of VirusTotal which was published in SecurityWeek. Here's the thesis:
In buying VirusTotal, Google provided itself with an access to a community based reputation feed. They will probably leverage this valuable data in order to provide Chrome’s and other Google services’ users with better malware protection.
The acquisition of VirusTotal by Google signals that community based reputation feeds is a key element in a modern protection suite.