Possible to do a type-ahead combobox?

Getting Started Newbie Questions
#1

I would like to create a combobox with options populated/filtered as the user types, similar to the google search. 

I think I know how to get a the data, I’ll use a web service as per this article:

http://omnigeek.robmiracle.com/2012/04/15/using-corona-sdk-with-rest-api-services/

I actually already have a service which returns JSON, that I use for an HTML5 application, so no issue there.

My question is in the app, which widget/api do I use for the combobox itself?

Thanks in advance.