It would be helpful if there was a built in way for a token to be a linked item.  This could be done through an ItemTemplate or a NavigateURL property on an Entry.

Instead of having the property to select single or multiple it would be more productive to have a property called SelectCount and we can enter the amount of listings to be selected. If its a single I select 1... for multiple I select how many I need. No more need for the Single/Multiple property except for backward compatibility.

RadAutoCompleteBox needs a Delay option to delay the retrieval of data while user is typing - in milliseconds.