1. Yes, to reboot you turn it of then turn it back on. Take the battery out when it's off for 10 seconds to doo a cold boot.

2. Make sure the logo is facing up, make sure you're using a micro-to-minisd adaptor, try getting an 8gb microsd card by sandisk. I recently bought one for 40$ at radioshack, great deal.

3.with a femal-to-female adapter you can connect a usb keyboard with the nokia mini usb cable. though you can get an igo stowaway bluetooth keyboard, or even a laser bluetooth keyboard haha.