I’ve written about incremental and iterative development often since 1993, trying to get the words phrased so that people understand, that I need a collector page for the topic. Read my various attempts:

1993 : The impact of object orientation on application development (IBM Sys J, PDF)
1993 : Unraveling incremental development
1997 : Using VW staging to clarify spiral development (discussion: Re: Using VW staging to clarify spiral development)
1997 : Managing increments and iterations with VW staging 030.ppt (PPT)
1997 : Managingincrementswithvwstaging030.ppt (PPT)
2004 : Unrolling cyclic development processes
2005 : Are iterations hazardous to your project?
2007 : Incremental versus iterative development (discussion: Re: Incremental versus iterative development)
2007 : Three cards for user rights
2007 : VW06increments.gif
2007 : VW07iterations.gif
2008 : Increments and iterations (collector page)
2008 : Iterative development unrolled.gif
2008 : Incremental means adding, iterative means reworking (discussion: Re: Incremental means adding, iterative means reworking)
2008 : Using both incremental and iterative development
2010 : Elephant Carpaccio exercise (discussion: Re: Elephant Carpaccio exercise)