No. Mainly because the site is already responsive for mobile devices so you should have no problem using ET on your phone.
Yeah, it worked fine on my phone when I searched it, but an app would be a nice shortcut...and eliminate typing and a search function...........
If you use Chrome as your browser on your android, You can add a shortcut to ET on your phone by first going to the ET homepage with your browser and then click the three dots at the top right to pull up the browser menu, and then click on "Add to home screen". That will give you an icon on your home screen that looks like: I suspect the process would be pretty much identical with other browsers.
You're a genius, it works just like you suggested. (This message was approved by Raymond and sent from his Android phone).