I have a suggestion for a future version of Tear - add an option to toggle drag-scrolling or text-selecting with a toolbar button, in addition to the option of holding down the Menu hardware button (which is kind of awkward on the N810). The idea would be to pan around the page, tap the toggle button, select your text, hold to copy, tap the toggle again to go back to drag-scrolling.

See mockup with hastily-designed icon below (the drag-scroll mode / text-select mode button is fourth from left. I tried to keep it away from the Reload or Back/Fwd buttons.)