Many VXP apps required digital certificates that expired after a specific date. If you set your phone’s clock forward, your game would vanish. If you set it back, other apps broke.
VXP files are primarily for MRE-supported devices (often referred to as operating systems). Sideloading: vxp games and apps
: Using basic HTTP requests to store small progress strings on a remote server, allowing users to keep their high scores across devices. Adaptive UI : Designing layouts that automatically adjust between 240x320 (QVGA) 320x480 (HVGA) resolutions, which are common for these devices. External File Support Many VXP apps required digital certificates that expired