Figure and Nendoroid are being developed to a superior level!!! Recently, Good Smile Company (figure toy manufacturer) has partnered with Yukai Engineering (robot toy manufacturer) to create a new type of figure. It's named "Hatsune Miku by iDoll x Nendoroid", comes with special abilities such as speaking, singing and dancing.
Miku iDoll Nendoroid moves by applying the mechanism of Yukai Engineering's iDoll Robot with Good Smile Company's Nendoroid body design.
The Miku Nendoroid able to dance and sing Hatsune Miku songs. It's really amazing! Moreover, Yukai Engineering said that it can interact with people. I know you're thinking about the swimsuit version!