Using RPi3 as a WiFi AP

https://frillip.com/using-your-raspberry-pi-3-as-a-wifi-access-point-with-hostapd/

For RPi2 new hostapd:
http://quadfinity.blogspot.ru/2014/09/compile-latest-hostapd-v2.3-on-Raspberry-Pi-or-ODROID.html

Install OpenCV and Python to Raspberry Pi

Adding a RTC to Raspberry Pi

Enable connection to Raspberry Pi over USB

Use Android Tablet as a screen/keyboard

Wireless Mouse speed

To resolve problem of a sluggish mouse pointer with the wireless mouse:

Raspberry Pi: TFT 3.5" Touchscreen over Python

tslib (SDL, pygame)

tslib is used by some non X windows applications and frameworks.

Raspberry Pi: TFT 3.5" setup

3.5 inch Touch Screen TFT LCD Designed for Raspberry Pi

Raspberry Pi: x11vnc

Access the same session as being displayed via HDMI (console 0).
It supports UVNC and TightVNC file transfer.