There is just something inherently cool about miniature robots with wing's.
Take a look at these videos, the first from Shimoyama-Matsumoto Laboratory, University of Tokyo, the second from AeroVironment. DARPA is continuing funding for its Nano Air Vehicle Development Program, so I look forward to having miniature flying insect-like robots following my every move in the future.
Festo's AquaPenguins, and AirPenguins are perhaps the most impressive, although I'm pretty sure I'd see them coming. Bioinspired robots seem to be doing so well for these kinds of goals. Although these videos do make me wonder sometimes if these things haven't been photoshopped.