We’ve seen quite a few iOS 5 concepts that have demonstrated how Apple should revamp or implement features such as Speech Recognition, faster App Switching, widgets and Push Notification system.

Folks at iSpazio, point to iWork.com keynote presentation uploaded by Federico Bianco, which predicts the new features and improvements in iOS 5 along with screenshots.

Bianco’s keynote presentation consists of 97 slides, which covers improvements such as enhanced lock screen, Spotlight, photo management, call management and new features such as Widgets, Quick Settings inspired by SBSettings, Application Stacks and Spaces.

You can checkout some of the screenshots from the presentation below:

Lock Screen:

Widgets:

Stacks:

Spotlight:

Quick Settings:

Photo Management:

Spaces:

You can checkout Bianco’s keynote presentation on iWork.com by following this link. Kudos to Bianco for all the hard work to give us a glimpse of his vision for iOS 5 and iSpazio for discovering it (especially since it was uploaded by Bianco back in February).

As always, please don’t forget to share your views in the comments section below.