There isn't a lot to say about the newest update to the Yelp app for Android, but that doesn't matter - the one notable change is a biggie. Yelp has finally integrated Google Maps API v2 released back in the beginning of December, which rids Yelpers of the terrible WebView Maps API. The new maps API is hardware accelerated and vector-based, drastically increasing performance and level of detail. You get pan, zoom, tilt, and rotate, along with 3D buildings, indoor building maps, landmark labels, and terrain shading.
The Yelp app for Android has been updated to version 3.7, and brings some much-needed action bar love to everyone's favorite restaurant and other place-finding service... thing. Except they sort of botched it a little bit - with a big, fat ugly gray bar at the bottom of the map and result list UI that decreases the amount of visible content. Lovely.
On the upside, now you have a 3-dot menu button, and the standard action bar back button, too.