Most are used to seeing sitelinks in the organic search results in the usual two column format, either with descriptions or without.  Bing seems to be testing a single line version of it instead.

This test also shows the sitelinks with 6 links in the single line, different from the usual 4 we have become used to seeing.

They are using sitelinks as anchors for sections on YouTube as well.

We do see this in both Bing Ads and Google Adwords ads.  But when they appear in the organic search results, this is how they normally appear.

This certainly reduces the footprint that brands get in the Bing search results, especially since many of those brands are used to locking down a large amount of above-the-fold real estate on the screen – sometimes as many as ten sitelinks with descriptions.