The Australian is reporting that Google has beaten out a number of enterprise competitors to win a contract to host email for the New South Wales Education Department. The new deployment will be the largest Gmail custom setup in the world, and will be co-managed by Google and Telco provider Telstra. The contract win is another strong signal that Google are making strong inroads into the enterprise market, as we also saw at the Salesforce conference this morning, where the same Google applications were integrated into the force.com enterprise platform.