There are portable SNES and NES systems that are very large in size, due to the big cartridges that they cater to. One cool thing about these systems is that they can be turned into a normal console, just add some controllers. You even have the option of connecting them to a TV.
I would like to see a Game Boy that is similar in size to those aforementioned systems, with the same controller and TV functionality. The 5-inch screen alone would be a worthwhile selling point for many gamers.
To switch from portable mode to console mode, I included a built-in adjustable stand which also doubles as a cover for the SNES controller ports:
I chose SNES controllers because those ports are smaller, plus I find the SNES controllers to be more comfortable in general.
I went with a built-in stand because this system would have a thinner profile compared to those other large portables, so some help was needed to keep it upright.
This would have HDMI out, a feature that debuted on the recently-released 8-Bit Boy from Gamerz Tek. Ideally this would be compatible with Game Boy, Game Boy Color, and Game Boy Advance games.