Well, this is very late news, but better late than never: There's been an update to the Mobipad application, which allows you to wirelessly control S60 devices through a standard Nintendo Wii controller (particularly useful if you've got your phone connected to a television through TV Out). The new Mobipad 1.2 beta lets you customise all the buttons to your own liking, which should solve the control problems that were experienced by previous Mobipad users. The catch is that you have to make a 5 euro donation to the developers to get the new version (previous donors get the new version free). The old version 1.0 is still free though.

You don't need a Wii console for this to work, all you need is one standard Wii controller, which can be bought separately at any video games shop.