Apple is putting up new banners promoting iOS 7 at the Moscone Center where its Worldwide Development Conference is taking place next week, as noticed by MacStories.

The company had previously confirmed that the next version of the iOS operating system would be unveiled at WWDC. The extremely simple banner features a svelte number 7 against a minimalist background.

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The banner is very different stylistically from the more traditional iOS 6 banners that Apple used last year.

Some of the banners already up at the Moscone Center include the tagline 'Where a whole new world's developing'.

WWDC begins Monday with the conference opening with Apple's annual keynote presentation. The company is expected to unveil iOS 7, OS X 10.9, the iRadio streaming music service and new Mac notebook models.

Update: The 7 appears to be from Helvetica Neue Ultra Light, an extremely thin variant of Helvetica.