New Zune announcement coming at E3?

It looks like Microsoft could be set to announce a rival to the iPhone at E3 next month.

As spotted by Neowin, an intriguing new update has appeared on the Twitter page for the Microsoft Office 2010 team.

It reads: "June 2009 will be an important month for Zune lovers."

A follow-up message has since popped up, saying: "New product launch, that's all I'm allowed to say. Hold off from buying an iPhone/Pre."

So will June bring news of a new Zune? Will the announcement be made at E3? Will it have phone and gaming functionality, just like Apple's offering? Or is Microsoft finally launching a service that will let "Zune lovers" actually have sex with their machines? Probably not the last one.