BlogdoiPhone claims to have somehow obtained a “pre-GM” version of iOS 5.1 and they discovered some interesting new features. In the screenshot above you can find a new camera slide-button on the homescreen. Normally we have to double tap the homebutton to show the camerabutton, now in the upcoming iOS 5.1 the camera button always shows and can be activated using a slide move.
The other new feature what they found is the presence of a Japanese language setting in Siri. Not totally unexpected since this rumor is going around for a while now.