The PlayStation Portal is out now and already facing stock issues.
PlayStation Portal™ Remote Player PS5 games in the palm of your hand (US)
Sony's portable PlayStation Portal is back in stock - The Verge
NEW PlayStation Portal Remote Player Controller for PS5 Console # 711719579779
Still Need a PlayStation 5? Sony Says Its Console Shortage Is Over
Sony PlayStation Portal Remote Player for PS5 Console
PlayStation Portal restock tracker
Sony PlayStation Portal Remote Player for PS5 Console
PS5 Restock Tracker: How to Score a PlayStation 5 Console Bundle on Cyber Monday - CNET
PlayStation Portal Review: a Cool Handheld for PS5 Owners, but Its Features Are Limited
PlayStation 5 (PS5)
Screen size comparison for the naysayers : r/PlaystationPortal