The pee-repellent, as reported on Philly.com last September, is called Ultra-Ever Dry and has been used in public spaces in San Francisco and Hamburg, Germany. The product is not only supposed to sanitize the pee, it is supposed to cause the urine to splash back on the pee-petrator. (So perhaps the problem isn't that the repellent is failing to repel, but that people are remaining in the stations while covered in reflected pee?)