Reuters run a story where Motorola Executives explain why the Motorola iTunes Music Mobile Phone was not on display at CeBIT.

Motorola says that Apple and them have different ways of launching products. Apple announces a new product and immediatly starts selling it. Motorola says it is on schedule to deliver two iTunes phones this year. One coming in the first half of the year and the other in the second half.
Other reports before assumed that carriers would delay it, because of the iTunes dependency.

We reported about the ROKR the first time in February when Motorola's CEO first dropped the name of the iTunes phone. Then a report at MSNBC indicated that the ROKR would be shown last week, and also reports indicated it will show up at CeBIT.