Aparently it's not as great as the other ones, but now at least you can find out for yourself. The demo for Beautiful Katamari, to be released in Europe in March, is now available on Xbox Live in Europe. Details:
Content: Katamari Demo
Availability: Europe, Australia, and New Zealand (Canada, Mexico, and United States)
Dash Text: [ESRB: RP (Rating Pending)] Roll your katamari and collect lots of stuff in order to increase its size in this fun and quirky action game!
Size: 432.37 MB