Apple Inc.'s iPhone 3GS, the newest in the iPhone series, will debut on June 26, plunging into Japan's cell-phone market, where competition is getting more intense as phone carriers release impressive summer 2009 lineups.
For example, Taiwanese electronics maker HTC Co. is providing a phone from NTT DoCoMo Inc., powered by Google Inc.'s software platform Android, while KDDI Corp. is introducing a phone that can shoot video in high-definition quality.
Considering a variety of choices, some consumers, including existing iPhone 3G users, are probably wondering if the iPhone 3GS, which will be in a Softbank Corp. lineup, would be a worthwhile upgrade.