Before smartphones standardized widescreen ratios, the resolution (WQVGA) was the "premium" standard for touch-screen feature phones. Devices like the LG Cookie, Nokia 5230, and Samsung Star used this aspect ratio. It was tall and narrow.
The keyword phrase essentially encapsulates the user journey of that era. Users were looking for "Games," specifically those optimized for "Touch" screens (as resistive touch technology began to rise), and they found it all on "Waptrick," their primary source for "entertainment content." XXX GAMES 240x400 TOUCH WAPTRICK
Assuming you're interested in writing about mobile games available on Waptrick, here's a draft article: Before smartphones standardized widescreen ratios