Conde Nast today continues the rollout of iPad magazine subscriptions that started with the New Yorker, adding Glamour, Vanity Fair, Golf Digest, and Allure to its digital roster. Each iSubscription will cost $20/year, or $2 for a single issue. If you're a current print subscriber, congrats! You get free iPad access starting now, including a back catalog of issues available for download. [Wired]