Wow, that's a pretty cool system. There it is really easy to remember where every key is assigned.
OK, you cannot do it directly like this TwoStick thing with Xpadder. There would be one problem, Xpadder has one set to less.
But it is possible, to make an complete mouse and almost complete keyboard (print and pause key does not work) out of your gamepad, with Xpadder. I already made a profile for this, you can download in the buyers area after purchasing Xpadder. It works with one stick and the four colored buttons for typing.
My profile is not that easy to remember I think, but if you work a certain time with it it will be no problem anymore. You can use a free program like powermenu to hold the Xpadders main window on top all the time, so that you can see what you will type. You can also make your own typing system with Xpadder, or modify mine to your wishes.
Would be another solution then FARSTRIDERs, so you can decide what you like to use.
This TwoStick gives me the idea to make such an sketch for my profile too. This would make this window topper thing unnecessary, and it would be enough to print this sketch. Let's see, if I will get something proper.

Edit: Sketches are done. For German and UK layout at the moment.
