AppleInsider posted an article today that has a photo of what could be the next iPhone.
http://www.appleinsider.com/articles/08/05/06/nbc_at_itunes_uk_caris_and_piper_outlooks_new_3g_iphone_photo.html
http://www.appleinsider.com/articles/08/05/06/nbc_at_itunes_uk_caris_and_piper_outlooks_new_3g_iphone_photo.html