I saw 2 days of review time last month and 4 days recently this month, from submission of a new app to acceptance email. And this month, an app appeared in the store the very next morning. These review times are for simple apps that are very similar to apps that Apple has reviewed in the past, and which I didn't think had any obvious bugs or anything close to a HIG or SDK rule violation.
But last fall, I had a more complicated new app that they rejected about a month after submission. So YMMV.
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