Paul Jones is rejoicing a bit about the OpenID and Typekey functionality Wez Furlong shared just the other day on his blog.
Wez Furlong gives us good news about implementing the math functions needed to support TypeKey and OpenID more directly within PHP.
Paul also mentions that the Solar framework has also had the Typekey support integrated for a while now (as an adapter) that uses the "big-number math functions" currently available to PHP developers. Wez's solution, however, would just about make those obsolete.