Last week YouTube Mobile adopted HTML5… it wasn’t long ago that Apple touted YouTube as the iPhone’s original launch partner (via a native application). Their adoption of HTML5 is yet another indication that it is fast becoming a standard for web experience and portability.

This alone is newsworthy… but I wanted to quickly showcase YouTube’s example of their ‘pop-up’ unit:

- it appears immediately on load of a YouTube page
- it is big, bold and interferes with the video’s viewability… and is therefore noticeable
- it directs users to add an icon to their iPhone’s homescreen… which is an effective way to convert a pageview to an iPhone icon
- it is part of an emerging trend to point directly (both visually and through language) to actionable items

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