New 728X90 Leaderboard Ad panel by Adsense

Has anyone seen this advertisement panel by Google adsense? I was browsing through one of my favourite sites on blogger template designs - Simplex design blog,when i came across this particular adsense panel . It shows vertically linked text from anywhere between 3- 5 links.

New 728X90 Google Adsense Panel with vertical ads.

I initially thought it is a problem with my browser cache, but even after clearing it , the ad panel persisted. I wonder whether this a new type of advertisement setting by Google Adsense. Have you come across this before?

Category: Adsense