The search as you type functionality would be very helpful in dropdowns, where you have a large amount of data. It would be nice if it could be configured if the search mechanism by default is "start with" or "contains in".
In addition to a SearchType property (Starts with | Contained in), in a subsequent release it would be good to specify one or more fields to search against. If multiple fields are specified, results should be displayed in a pop-up data grid that contains the primary display field, and the additional fields that are in included in the search.
From my perspektive you should be able to define a view per lookup column. In the view you could predefine filters and sorting and the fields that shoud be displayed for every item. So you should be able to display multiple lines for every drop down item.
And all fields (lines) for every item should be searchable with a cotains filter.
Retrieving data ...