The expectations grew because Apple started inviting journalists from across the globe to attend WWDC - something it only bothers doing if it has a truly major announcement to make.
The thing is, a major announcement from Apple does not have to include hardware. Apple is a major maker of software, including operating systems, and hardware, and there's no question that Apple needs updates for the lot.
Given the importance of Apple's software to its entire operations, major software updates are major news, and worthy of inviting journalists the world over for, and hey, if there's a new iPhone launch too - it's an obvious bonus that makes the invitations even more worthwhile.
OS X 10.7 Lion has already been previewed in a limited form, with WWDC expected to open the floodgates on how the new OS X will blend in features that iOS has made common, as well as improving security and a whole lot more.
iOS 5.0 is expected to be unveiled too, with the iOS users of the world hopin' and a prayin' that Apple finally gets its 'notifications' system right, something that the Android OS does super-well in comparison to the current iOS system of annoying SMS-like pop-ups, interrupting whatever it is you are doing until you click that notification away.
Of course, an update to the notifications system is not all that is expected. iOS could do with a graphical spruce-up - it has been nearly 5 years with the same interface, after all.
There's also a clamour, from some at least, for iOS 5 to get the same kinds of widgets we see on the Android OS, and there will be disappointment from some if iOS widgets don't wriggle their way into the world.
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So, the rumours keep on spinning.
Well'¦ we'd certainly like to see a svelte, sexy and slim new iPhone to succeed the current iPhone 4 model, and it is indeed the right time of the year to be expected such developments.
The thing is, Apple is a company that does not play to the usual corporate tune, Apple is a company that likes to deliver the unexpected while making the game of expecting the unexpected to have unexpected outcomes.
Perhaps this WWDC will deliver 'unexpectations' of exceptional proportions.
We'll just to have to wait until WWDC to find out!