ITP

from The Free On-line Dictionary of Computing (8 July 2008)

Intent to Package
ITP

   <Debian> (ITP) A notice, posted to the {Debian} developer
   {mailing list}, announcing a developer's intent to make a new
   Debian package, including a brief description of the package
   and its license.

   (2000-05-31)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ITP
       Intend / Intent To Package (slang, Cygwin)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

ITP
       Intent to Package (Linux, Debian)