Microsoft's $15 Windows 8 upgrade offer!

Microsoft's $15 Windows 8 Pro upgrade offer will run from June 2nd to January 31st, 2013, according to one source familiar with the company's plans. 

Microsoft Store customers who purchase a Windows 7 PC from june 2nd will be offered a Windows 8 Pro upgrade for only $14.99. Also, Microsoft Store customers who participate in the Windows 8 Pro Upgrade offer will also be invited to exclusive workshops to learn more about Windows 8. Microsoft will also supply a $20 Microsoft Store gift card for a present for attending one of its planned workshops.