iPhone 4 pre-orders begin? I don't think that's what they were referring to. I just received an email in my inbox from Microsoft that says "Something big is coming on June 15th." Take a look.

Now, I'm no rocket scientist, but judging by the Microsoft Office logo on the top right, my guess is Microsoft Office 2010. Plus, there's a new orange color scheme for Office that has only been used in the 2010 betas. So look for Microsoft Office 2010 to arrive on June 15th.