Guys great news. I have personally looked for an similar ICS/Jelly bean YouTube app for GB but they didn't have it. So I read the news and feed and Google recently updated and released their new holo ui and revamped YouTube app for froyo and GB go upgrade yours
https://play.google.com/store/apps/details?id=com.google.android.youtube
https://play.google.com/store/apps/details?id=com.google.android.youtube