When viewers stumble upon a video requiring payment, they'll get a free preview up to 2 minutes long before being asked to subscribe.

NPR: YouTube's New Pay Channels Go From Campy To Kids

To access the free preview, customers can select "On Demand" on their U-verse remote and scroll to Screen Pack, or they can search "Screen Pack" on Uverse.com and on the U-verse app.

ENGADGET: AT&T Screen Pack gives U-verse TV subs on-demand access to 1,500 films

Another feature rolling out is "Free Preview" which lets viewers watch before they're finished logging in, while a Server Side API on the way should open up access to more apps on more devices.

ENGADGET: Adobe pushes TV Everywhere forward with Adobe Pass 2.0, promises easier logins on more devices

The Lightroom 5 beta offers a free, public preview of new features and tools that will be offered in the final release, expected later this year.

ENGADGET: Adobe Photoshop Lightroom 5 hits public beta, adds Smart Previews and Advanced Healing Brush

As we reported earlier, Windows 8.1 will be available as a free update (in preview) starting June 26th, the day Microsoft's Build developer conference kicks off.

ENGADGET

All PlayStation Plus subscribers may download the free Hulu Plus application and, within it, request an invitation to the exclusive preview.

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Reflow is now available for free and paid Creative Cloud members along with updates to Dreamweaver, Edge Animate and to the preview of its new code editor, Edge Code.

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