As many know, I released gameboy4iphone v1.5.0 to the public yesterday, through my Cydia repo. Well it seems I made a bit of a mistake and it had buggy sound. I think it's fixed now, so I have released a beta of gameboy4iphone v1.7.0 via Installer.app with the following changes:
Fixed a bug made that affected sound quality.
Added a special option to disable framelimiting by pressing VOLUME DOWN + VOLUME UP.
Added a portrait controller skin custom made by thailar for the game DDR.
Assuming this quick but important beta goes well, a Cydia and Installer.app public release will be made shortly.