I started writing an Objective-C interface to CouchDB some months ago, but put it on ice because I couldn’t find a good way to handle JSON in Objective-C. I eventually did, so this weekend I restarted the CouchObjC project made an initial release so people can start play with it.
Please note that the interface is very sketchy right now. There’s no support for views yet. The error handling is poor and will need to change. Feel free to contact me if you have an opinion on how you’d like to interact with CouchDB in Cocoa.