The built-in help file in the tablet's browser says the following:

"To select some text on a web page, quickly tap the text twice on the same spot, hold the stylus down, and drag it over the text you want to select."

"To select all the text on a web page, select (browser menu icon), Edit, Select All."

"To copy text from a web page, select the desired text and (browser menu icon), Edit, Copy."

I wish Nokia would make the help files more prominent because they contain a lot of really good info, but no one seems to even know they're there.