[Lucyloo]

I apologize if this is elsewhere on this thread, I looked but did not find.

Is the Galaxy's battery user-replaceable?
If I use it primarily for reading could I expect a longer battery life?
i am a teacher and would love to have an alternative to lugging my entire laptop to work every day. I often need to show powerpoint-type presentations or a simple slide show of photographs. Could the the Galaxy support a powerpoint-type app? Is there a way to connect it to a projector or monitor?

Thanks!