Recently some folks pointed out that Yahoo! Maps can show WiFi Hotspots. This is similar to the sponsored links you can see at the bottom, showing things like Denny’s or Holiday Inn. The HotSpots are sponsored by Intel and seem to focus on paid services, resulting in lots of hits for Starbucks and McDonald’s, for example.
What interested me more was SmartView which can show businesses (from Yahoo! Yellow Pages I assume) on the same map. This is something I’ve been looking for and I’m surprised this didn’t come out sooner. For a given location, you can highlight various businesses like restaurants, gas stations and so on. This is a really useful feature.