Right now Yelp is number 93 among the top 100 free iPhone apps. I received an email over the weekend from CEO Jeremy Stoppelman about some upgrades and feature additions to the Yelp app (version 2.0). These features aren't live yet but Stoppelman expects the upgraded app to become available (after Apple approval) at some point next week. Here's the list:

• Map now links to Google Maps for quick directions, zooming, etc.
• Complete attributes about each business now included (good for groups, reservations accepted, etc).
• More photos Link to official business website (opens Safari)
• Business Hours

Stoppelman said in the email, "My favorite new feature is the 'Hot on Yelp Nearby,' which tells you the most noteworthy businesses near your current location."

Here are some screenshots of Yelp 2.0 for the iPhone: 

___

Related: The New York Times has a roundup of travel-related applications for the iPhone.