Word in the tech blogosphere today is that starting June 2nd, Microsoft will officially start a promotion for new buyers of Windows 7 PCs that will enable them to upgrade to Windows 8 for just $14.99 when it becomes available.  No word yet if this will apply to Windows 7 tablets as well as laptops and desktops but we don't see why it wouldn't.  Interestingly, the rumor has it that the company will offer Windows 8 Pro for that price and not the standard edition.  Remember, the company recently announced that there will be three versions of Windows 8.  Windows 8, Windows 8 Pro and Windows RT, the ARM version of the software that will only come pre-installed on ARM tablet and hybrid devices and is not expected to be offered for sale separately.  The promotion coincides with what is expected to be the final 'pre-release' candidate of the OS for the public and developers to see before the official version comes out.   It should incorporate a number of fixes and developments that were still in the making a few months ago when the Consumer Preview came out.  So what do you think?   Will you buy a Windows 7 device and upgrade to Windows 8 or would you rather wait to buy a device after the new OS has come out?