Here is a Wikipedia Widget for Symbian S60 5th edition touch screen devices (Nokia 5800 XpressMusic, N97, N97 Mini, X6, 5230 and 5530 XpressMusic). Wikipedia widget allows you to search inside Wikipedia for any topic.
With Wikipedia widget, you can search in title or perform full text search. The complete Wikipedia is right there on your mobile with the help of this widget.
You can easily look into the details of any topic you searched for. The widget works well. Since its a widget, you need to be online in order to let it fetch the latest contents. Download Wikipedia Widget for your mobile from the following download link. Wikipedia Widget