Arcade cabinet mods are certainly nothing new. Ever since the kids of the late 70s and early 80s grew up into the adults of the late 90s and early aughts, the internet has been filled with folks building wooden boxes around computers and joysticks. Today's example, though, uses an Android tablet and a Tatsunoko vs. Capcom fight stick for what might be one of the cheapest, easiest-to-replicate Arcade cabinets around.
Unfortunately, the creator of this particular mod hasn't included instructions on how to follow in his footsteps (yet), but the cabinet does appear to be fairly straightforward. The fight stick is plugged in to a Wii remote which is then connected to the Lenovo K1 via Bluetooth. Of course, this means that the entire arcade is running on both the battery power of the tablet as well as the two AA batteries in the Wiimote. One might hope for something more long-lasting in a cabinet such as this. Thankfully, the construction seems to be such that all the electronic components can be easily removed.
The software running the cabinet is MAME4droid, a port of the iOS equivalent iMAME4all. The emulator can run any MAME-compatible arcade game. This is a BYO-ROM situation, so don't count on downloading 2000 different arcade games to your tablet directly from the Play Store. Of course, if you've spent any time in the emulator scene, that should go without saying.
Of course, as instructions for this particular cabinet are not available, enterprising readers could take it on their own to improve upon the design or simply duplicate it. It's an impressive piece of work no matter how you slice it. Why not use it as inspiration for your own cabinet?