Since CWOP (Citizen Weather Observer Program) users moved to their own IS server pool, aprs.fi has not collected weather data from them. I've connected aprs.fi to the CWOP servers to collect that data again, and the CW* stations should now show up. If you don't wish to see them on the map, you can always hide the WX stations in the Preferences.
Several users have also requested that support for the Google Maps Traffic would be added. It's there now, along with a couple of other popular overlays behind the More button. The traffic data is collected using crowdsourcing methods (Google's view), so it's available on those roads where people use Google Maps to navigate (excluding iPhone users).
The heard and gated maps have also been fixed a bit, they no longer load all the other stations in the view. That was a stupid bug on my part. These views have also received some technical improvements and speedups. As a side-effect I erased the 48-hour history tables, so those views (and the "heard by" tables in the info pages) will be a bit empty for the next day or two. Sorry about that.
The info pages now show symbols together with the callsigns in the tables. Hmm, sorting by symbol doesn't seem to work, though.
There's also a new service status view.