Well done, challenge completed!

I've never had any real trouble with handhelds to require any kind of modding, but (and it's a big but) the PSP (especially) gave me such a pain in the wrists (carpal tunnel like) that I had to play in short bursts.

I also prefer my DS games with the touchscreen (avoiding the d-pad as much as I could), so I didn't get to complain much. But I can see how it can be an hassle for RPGs and the like.