This release is two weeks old, but might be still interesting for some of you:
WebShell is a web-based SSH shell. It runs on any browser capable of JavaScript and AJAX. You can use it from any computer or iPhone/smartphone. The server is written in Python and is very easy to set up on Linux, Mac OS X, BSD, Solaris, and any Unix that runs python 2.3. WebShell is based on Ajaxterm.