[bambax]

A selfie gadget would be an amazing thing. Maybe it could simply be an accessory to a phone, a variation on the selfie stick that would let you use the back camera (the good one) for selfies.

It strikes me as very strange that on all phones the good camera is on the back and the crappy one on the front. Many people mostly take selfies with their phones and so it would make much more sense to do the opposite.

[opencl]

There have been a few 'selfie phones' (Zenfone Selfie, HTC Eye, Xperia XA Ultra) with identical front and rear cameras but clearly they never really took off.

[fjsolwmv]

You don't need 20MP of your face, that detail is undesirable. You want more MPs when the image is many people or a landscape