A cell phone application that will help illegal immigrants find water and key landmarks as they cross into the United States is an inappropriate use of taxpayer funds and an irresponsible use of technology, critics say.

The Transborder Immigrant Tool (TBT), the brainchild of three faculty members at the University of California-San Diego and a colleague at the University of Michigan, is a software application that can be installed into a GPS-enabled cell phone. In addition to helping immigrants locate water and landmarks, it also could alert them to Border Patrol checkpoints. And to make the trek a little less arduous, it also plays recorded poetry.

“I don’t think it’s an appropriate use of technology,â€