Two Blackberry models now have Wi-Fi interfaces, allowing users to connect download files much faster: The full-sized Blackberry 8820, available exclusively through AT&T, and Blackberry Curve 8320, available through T-Mobile. Be aware, however, that batteries will drain much faster when using Wi-Fi. Take a look at the related BusinessWeek review. Maybe the availability of Wi-Fi in Blackberry devices will help stimulate the need for city-wide Wi-Fi networks? What do you think?