The first Chrome 10 Dev Channel build bundle two HTML5 games: Poppit and embarrassing situation. The two games are additional to the new tab page even if you've before installed other apps.
Some users will almost certainly be surprised to see two games they didn't install, so Google should inform users that the games were routinely installed. Chrome's source code makes it clear that Poppit and Entanglement are installed for all operating systems, except for Chrome OS. Almost certainly a better idea would be to suggest some apps based on the browsing history.