@geneven

I use moon+ reader, it supports multiple formats. Very easy, long tap on a word, the word is highlighted, little bars on either end (to move and highlight more), tap on copy from the pop'd up menu. Change to where-ever I want to paste, long tap, and paste.

Granted this is android 2.2 froyo. Also on my Huawei S7 tablet, the bar at the top has a button to bring up open tasks, making it very easy to switch between tasks. On my Vibrant, long tap on the home key brings up a similar menu.

Don't judge the whole based on one flakey app.