We have given a number of talks and presentations about IPython:
2009
At the SIAM CSE09 conference we gave two presentations about IPython: a general one and another focused on parallel and distributed computing. If you are interested, the slides from all the presentations at this meeting are available.
2008
A talk at 23andMe where I spoke about ipython in general, with some details about its facilities for distributed computing.
2007
Slides from Dave Hudak, from the Ohio Supercomputing Center, about a proposed system using IPython for high-level, fully managed access to supercomputing resources (this system hasn't been implemented yet as of Sept 2008).
An article about IPython, written by Fernando Perez and Brian Granger, published in the May/June 2007 issue of the journal Computing in Science and Engineering.
A set of slides by Bill Spotz, from Sandia National Labs, on using IPython to interactively use the Trilinos parallel solvers.
Two talks about IPython at PyCon2007 (see the demos and movies as well).
A talk at an MSRI/Berkeley workshop on Interactive Parallel Computation in Support of Research in Algebra, Geometry and Number Theory.
2006
Slides of a talk entitled "Interactive Parallel Computing with Python and IPython," at CU Boulder.
A poster as the DANSE kickoff meeting.
A lightening talk at SciPy'06 about the Parallel Computing capabilities of IPython1.
Slides and MP3 audio of a talk at SAGE Days 2006.
A poster presented at SIAM's Parallel Processing '06 conference.
2005
Two talks at SciPy'05: one about parallel computing and one about interactive notebooks.
2004
A talk at SciPy'04.
2003
An overview of IPython at SciPy'03.