This is one of those questions that really belongs on a forum for IP lawyers. I'm not a lawyer, so this is somewhat speculative and should not be taken as legal advice.
A good rule of thumb is that anything you put in the public domain can open you up to legal liability. Whether you put your name on an application or not is irrelevant to whether or not you can be sued.
The open source people often include some boilerplate that amounts to "No express or implied warranty on this application, not even a promise that it will work and not brick your phone." How effective this boilerplate is would need a lawyer's perspective.