PAK-9 released a puzzle game called Tangle for GP2x.
Release notes:
I got quite excited when I saw Ledow’s port of Untangle, but I was dissapointed by the poor interface, so I took it upon myself to make an improved version.
You can select between 6, 12 and 24 point puzzles. No touchscreen support yet I’m afraid, I dont own an F200 🙁

AEP-Emu (DE/EN)
DMG Page (DE)
Indie Retro News (EN)
Retroguru (EN)