This would be super useful if there were an iPhone app were I could review my to-drink list, see recommendations, reviews, etc.

It would be neat to allow users to tell the site what beer they are drinking "right now" and their friends can see. Similiar to twitter in "What are you doing?" it would become "What are you drinking right now?"

Not sure about privacy or copyright of flickr images, but
1. suck in photos from flickr of specific beers on that beer page
2. suck in photos you've taken on your profile page
3. start a pool in flickr for those on 97bottles.

It would be nice to see the labels of the bottles so we can look out for particular beers in the bottle shop.

Allow users to upload photos of the beer they're reviewing.

iphone app, mobile app, and/or general service that enables me as a bar patron to report back to the 97B community which beers are at a given bar. then, other users can look up, by beer, which locations are serving their favorite frosty bevs.

I know that we're an online community, and I like having similar tastes to those all over the map. However, I think it'd be keen to be able to find similar beer drinkers within your city.

Particularly as a new user I'm browsing around the site for beers more then I'm reviewing [just yet]. There are many beers that I have had that might want to review down the road that may not be favorites, and for the time being I just want to queue them up so they don't get lost.

I'd feel bad flagging them as a "favorite" just so they're easier to find later.

Down the road it might also be an interesting data point to grab metrics from - ubiquity ratings, drank vs. favorite, etc.

Many of my favorite beers are those I or my friends have brewed. It would be great to be able to rate kits / recipes here alongside our other favorites.

See what beers you have in common. On a review page, put friends' reviews first in the queue so you don't have to scroll down searching to see if anyone you know reviewed it.

I am in a city with a ber haul where you can log your different beers Offer this to other Establishments for their patrons.

This (could) put the best reviews up top, but there could be tabbed versions of reviews (sort by date, thumbed up, thumbed-down, etc.)

Could be optioned as follows:
Amazon style: "This review helped me / This review doesn't help"
Forum style: "This review is funny / This review sucks"

The vessel list has some specific kinds of glasses used for beers, but not others. Either add them, or reduce list to more generics, e.g. glass/stone cup, plastic cup, bottle. If list is enlarged, would be nice to have a link on the site somewhere which displayed photos of the different kinds of glasses with their names for reference. I know there's a bunch of different glasses for different beers, but don't know the names of them all.

when i invite a new user, i should immediately be following them once they join

I would really like to be able to search/filter beers by all categories (IBU, color, etc.)

Thanks for adding the hCards (and the internal XFN). Now all you need to do is add rel="me" to external links and 97 Bottles will take its place in the social web ecosystem.

Beeradvocate has a great implementation of this.