According to Pocket-lint, Sony is planning to bestow PlayStation Certification onto upcoming HTC Android smartphones by the middle of the year. What does said certification entail?
Basically, the PlayStation Suite project (of which PlayStation Certified hardware is a part) currently consists of a dozen or so ported PSX titles from Sony's back catalog - like Crash Bandicoot, or Syphon Filter. They work on PS Certified Android phones as well as the PlayStation Vita.
Retro gaming has certainly experienced a second-wind on smartphones thanks to emulation, and Sony is trying to capitalize on that interest through more legitimate (and profitable) channels.