The Goldman Sachs expert analysts forecast the appearance of the second generation of the iPhone devices, the so-called iPhone2. It will feature the same form factor and full support for 3G mobile networks. According to the source, two versions of the device with different amounts of onboard memory will be available. The second half of 2008 is the estimated release period. Also, as seen by Goldman Sachs experts, the regular iPhone will make a second market entry in the beginning of 2008, reincarnated in an enhanced version with more memory.