I have purchased a 7" HDMI and touchscreen from ebay for my new Pi 2 B.
http://www.ebay.com.au/itm/201426004372 ... EBIDX%3AIT
The HDMI video is working but I think I still need to play with some parameters as the displayed text quality is not real good.
My problem is getting the touch screen working. This unit has an SPI interface and I have wired it up but can't seem to get Pi to recognise the existence of the touch input. This subject may have been covered before but searching last just left me confused.
I have enables the SPI in the config file but there is more it seems. Some sort of driver. The display uses the XPT204 chip for the resistive matrix driver.