http://www.engadget.com/2010/07/04/inexplicable-rise-in-iphone-devs-app-store-sales-connected-to-i/ I've removed my credit card info, just to be safe.
No, this sounds kind of real. http://discussions.apple.com/thread.jspa?threadID=2449108&start=0&tstart=0
Why the sudden urgency now? The link to the apple discussion took place June 3, a month ago. The op title gave the impression it was happening right now.
Well engadget just posted a "breaking news" article 53 minutes ago, advising people to check their purchase history. http://www.engadget.com/