On the Web, Google hotpot starts with your home city, or places from your Web history, if that is enabled, and displays local businesses. You can rate each place with up to 5 stars, or can even present a medal if you absolutely think the place is the "best ever". When you provide a rating, the flashcard-like places flip front to back and offer a place for you to write a simple review. Then it's on to the next card. Don't want to review an establishment? Just click "not interested" and move on. I found it only took a couple minutes to rack up about a dozen reviews, probably as many as I've ever logged in Foursquare.
Rating Fry's On Hotpot via the Web
Rating Restaurants on Hotpot via the Web
The Google Hotpot Leaderboard Early On
Rating Sunnyvale Restaurants Via the Mobile Widget
When on an Android device, assuming you have loaded version 4.7 of the Google Maps app, you can add a widget to rate places for Hotpot on the fly. Dependent on your location, you can rate businesses, or do a quick search (for example, restaurants near Sunnyvale). Find what you like, and as with the Web site, you can post 1-5 stars, and add a comment.
For the most part, although I am sure it is not universal, it seems the majority of Foursquare users choose the app primarily to check in quickly, not to leave detailed reviews and guide to friends. This will probably remain the truth until game mechanics are introduced that push reviews. But for Hotpot, it's not about checking in that you were somewhere, but all about the reviews and providing recommendations to friends. It may have been a quiet little release pushed out from the Mountain View giant after 7:30 pm Monday night, but it could be a big deal. I have added the Rate Places widget to my Android home screen, and expect to be using it a lot.
Want to find my recommendations, just get connected through my e-mail address: louisgray@gmail.com.