iPad/iPhone users - New-ish app that does tap for translation in browser
So I found this app, PinyinWeb:
You bring up a web page in it - it's basically a browser and tap over a word and you get the pinyin and translation. Buyer beware - it's not perfect - some words, it draws a blank and there is no translation, so there are bugs to fix, but there's nothing else like this as of yet on a tablet/smartphone.
I tried reading cn.nytimes in this and it's not bad, but not perfect. It's like a limited version of the Zhongwen plugin in Chrome.
No Android version, yet, but I have to think, sooner or later, there are going to be more apps like this.