It'd be nifty if I could have the power of Emacs available to me on a tablet. Since I don't imagine anyone's going to port it soon, being able to use it in a browser seems like the only way that's going to happen.
It's even 24.1. I only have patchy wifi now so I haven't been able to finish the install yet on my tablet but it installed and ran M-x tetris just fine on my phone.