Sean Hollister of Engadget noticed that several popular video game emulators were this week. The removed emulators included Nesoid, Snesoid, Gensoid, and Gameboid. All were created by developer Yongzh.

Engadget caught up with Yongzh who confirmed his was removed without warning. He told Engadget he is in the process of moving his emulators to third-party app store SlideME, but isn't "optimistic about his prospects."

This isn't the first time Google has pulled emulators from its smartphone app store.

In April Google pulled PlayStation emulator, from the Market. I'm guessing the application drew unwanted attention when Sony Ericsson was promoting its own, Android-based PlayStation phone, the .

Emulators are on shaky legal ground. Apparently the emulators themselves .