My guess is they'll run these SERP's in the looksmart results soon, similar to how Yahoo uses Google if no directory listings are found. Hence the look and feel being so Looksmartish. I'm hopeful anyway seeing as I think Looksmart will go down the pan, if they dont change their business model somehow!
If you click "Submit a Site" at Wisenut, you are taken to the Zeal directory - but those Wisenut results are "NOT" the Zeal/Looksmart directory. Looks like they'll be switching to Looksmart pretty soon?