The one or other probably heared about DragonBASIC. It’s a BASIC style coding language for the Gameboy Advance. The challenge is to create a program in under 32k using the unregistered version of Dragon Basic or Tin. More details via the page below.http://62.251.109.213/dragonbasic/

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