I suggested this on the last TBHS video, but I would love if Ben could look into the PS Vita hardware, and see if it's possible to get HDMI out (or even component). I've read rumors that Sony had supposedly made a cable/hardware to do this, but it never hit the market (probably do to a lack of sales). I would love to have this feature, so I could stream my PS Vita gameplay (I have an elgato I could use).
I know the PS Vita isn't a hugely popular device, but there definitely seems to be a demand for this feature, from PS Vita owners. It would also allow you to discuss the engineering of the device (I don't recall you ever doing a teardown on one).