SuperTube is a new YouTube client for Windows Phone 7 which allows streaming high quality video from the online service, and also uniquely allows the video to be downloaded for later watching.
The app features:
1. Browse High Definition (720P, 360P) and standard videos from YouTube
2. Download all videos of the YouTube to phone’s local disk, and supports resume broken downloads
3. Search all videos by relevance, published date, view count, and rating
4. Support Multi-Language (English, German, French, Spanish, Japanese, Italian, Simplified Chinese, and Traditional Chinese) and Multi-region function
All users of trial and full version can browse the High Definition and standard videos for free. The trial version contains advertisement, and limits users to download 3 videos successfully. The full version removes all advertisements, and allows users to download all videos without limit.
SuperTube is $1.29 and can be found in in Marketplace here.
Thanks Mikel for the tip.