  Let $X$ be an infinite compact metrizable space, and let $\sigma: X\to X$ be
a minimal homeomorphism. Suppose that $(X, \sigma)$ has zero mean topological
dimension. The associated C*-algebra $A=\mathrm{C}(X)\rtimes_\sigma\mathbb Z$
is shown to absorb the Jiang-Su algebra $\mathcal Z$ tensorially, i.e., $A\cong
A\otimes\mathcal Z$. This implies that $A$ is classifiable when $(X, \sigma)$
is uniquely ergodic.
  Moreover, without any assumption on the mean dimension, it is shown that
$A\otimes A$ always absorbs the Jiang-Su algebra.
