Opening the "Web" application: for me, it's Home > Applications list > Internet > Web. (I don't recall if I made the Internet category myself with Panels or if it was there by default). I would expect "Open new window" on the Home screen bookmarks list to work like the other bookmarks entries and like opening a link from another application: the message will be seen by browser-proxy (if MicroB is not running), and it will tell Tear to open the link.
They're maemo and MeeGo... "Meamo!" sounds like what Zorro would say to catherine zeta jones... after she slaps him for looking at her dirtily...