Yes - you can publish your app - there is no restrictionon the CTP. It will not
Is it possible for you to tell us what you are building - you can send the info to valio.stoychev [at] telerik? We are collecting applications built with RadControls and we can help you promote it.
the Telerik team
Let us know about your Windows Phone 7 application built with RadControls and we will help you promote it. Learn more>>