Comment on "Einstein's Other Gravity and the Acceleration of the
  Universe''
  We show that in the exponential $f(T)$ model studied by E. Linder
[arXiv:1005.3039, Phys.Rev.D 81, 127301 (2010)], it is impossible to have the
crossing of the phantom divide line $w_{\mathrm{DE}}=-1$.
