Monday's CNET Update does it with stylus: Now playing: Watch this: Countdown begins for Galaxy S4 reveal 2:57 The mother of all mobile trade shows, Mobile World Congress, kicked off in Barcelona. Today's video roundup highlights the buzz over Samsung, WebOS and a new way to talk to your phone: - Samsung will unveil the Galaxy S4 on March 14 - Visa's mobile payment program will be built into the Galaxy S4 - More on MasterCard's mobile payment plan, MasterPass - First impressions of the Galaxy Note 8 tablet - Samsung HomeSync to rival Apple TV - WebOS lives in future LG smart TVs - HP tries tablets again with the Slate 7 - Indigo is a Siri-like app for multiple platforms Watch CNET Update in the video above, and subscribe to the podcast via the links below. Subscribe:iTunes (HD) | iTunes (SD) | iTunes (HQ) RSS (HD) | RSS (SD) | RSS (HQ) The Matrix remembered at 20: Keanu classic or cyberpunk snooze?: Two decades on, share your own memories of the 1999 sci-fi action movie. Captain Marvel a soaring tale of self-discovery with a '90s riff: The first female-led Marvel movie subverts superhero tropes in the best possible way.