Former Joystiqer Ross Miller is currently on the ground for Engadget at Google's annual dev conference "I/O" in San Francisco, where the company just revealed its web-based app store for Chrome and Chrome OS. Aside from a handful of regular ol' apps and an interactive version of Sports Illustrated (paper? what's that?), Google debuted games for purchase, playable in-browser.
Plants vs. Zombies and Lego Star Wars are explicitly mentioned in the piece, but we can also spot Bejeweled 2 (also by PopCap), as well as Poker Rivals, Scrabble, FIFA World Cup 2010, and Who Has the Biggest Brain? (all by EA) -- a LucasArts rep clarified for us that the version of Lego Star Wars seen is actually this already available online game. We're not sure how much the games will be going for or even exactly how it'll work just yet, but we'll let you know just as soon as we do (there's a bit more info on the FAQ page). The web store is set to go live for developers "soon," but hasn't been dated for the general public just yet.