Short answers, pulled from the story.
The Game Boy Advance launched in Japan on the 21st of March 2001. This release marked the beginning of a new era for handheld gaming by introducing a 32-bit processor to a market dominated by 8-bit technology.
French designer Gwénaël Nicolas and his Tokyo-based studio Curiosity Inc designed the landscape form factor of the Game Boy Advance. This design choice placed buttons on the sides of the device to create a more ergonomic experience for modern gaming.
The Game Boy Advance uses a custom system on a chip manufactured by Sharp Corporation that integrates the ARM7TDMI processor and the Sharp SM83 processor. The ARM7TDMI runs at 16.776 megahertz for native games while the SM83 handles backward compatibility with older Game Boy titles.
By June 2010 the Game Boy Advance series had sold 81.51 million units worldwide. This figure included 43.57 million Game Boy Advance SP units and 2.42 million Game Boy Micro units.
The final game released for the Game Boy Advance in North America was Samurai Deeper Kyo on the 12th of February 2008. This release occurred after the Japan-only Final Fantasy VI Advance and the European The Legend of Spyro: The Eternal Night.