[en] This paper reports on both ion track etching induced nano-structured surfaces with high hydrophobicity and the fundamental vibration modes of submillimeter drops supported by such surfaces. A drastic reduction in the hysteresis of the contact angles (Δθ ≤ 6 deg.) substantially increases the mobility of the supported drop, which acquires a quasifree behaviour. The dependence of the oscillating modes on drop volume established experimentally is confronted to predictions of classical models dealing with free oscillations of droplets without gravity