After the Google I/O conference in early may 2010 (Android "Froyo" 2.2 release) and the Gizmodo case, some people were quite skeptical about how Apple could once again cause a stir. Finally, as they claimed it themselves, Apple has just changed everything again with its new iPhone 4. The new piece of jewellery designed in Cupertino comes with very impressive innovations (retina display, ultra slim design, pentaband connectivity, front camera, HD video recording, powerful processor) which should reinforce Apple leadership. Except some technical issues, the Steve jobs keynote was totally successful and has reached its goals, making the iPhone 4 the new "must have" of the highly competitive smartphone market.