Two proposals from JPL Roboticists have been selected for funding in phase one of the NASA Innovative Concepts (NIAC) Program. These are:
Titan Aerial Daughtercraft by Larry Matthies
Comet Hitchhiker: Harvesting Kinetic Energy from Small Bodies to Enable Fast and Low-Cost Deep Space Exploration by Masahiro Ono
More details can be found at the NIAC program website, here.