Good responses!

I already have 6 8gb sd cards (planning to take a lot of pictures without downloading), so the microsd thing is not viable. I wanted to upload for the "just in case" scenario.

Regarding modrana, I couldnt get the tiledown working, so what I did is a manual scrolling (with the hotel's wifi) of the area, and that worked.
EDIT: I need to try the jtiledown thing

The GPS lock time is indeed very long, but if you pre-lock with network help for the first time, for the rest of the day it will insta lock, no matter how many times you disconnect.

Good data about the Opera browser, I already have firefox but is very slow, but having another choice is nice for the "just in case"

I have already a second battery and a universal external charger, so I could charge both batteries at the same time.

Good advice regarding rsync. I have already configured my pc so I can access my router, WOL my pc, and then access the pc. But just in case the connection fail and cannot recover, I wanted to have a more reliable choice.
But again I need to make it work with the card reader.

Thanks for your answers