A purported iPhone "5G" or "4GS" antenna is making the rounds, from accessory maker Ideal Case, which has posted photos of it stacked between existing iPhone 4 antenna casings from the GSM and CDMA models of Apple's phone.
The photos, which were posted without any backstory, are watermarked with "confidential" in red, right where one would be able to examine the casings in further detail.
Despite that, the differences appear to be minor, with the purported antenna design matching up on the bottom with the other two models, as well as a SIM slot located on the same side as the existing GSM model of the iPhone 4. The main difference is a top that features an unbroken band, with side button placement that matches the CDMA model of the iPhone 4.
Apple is expected by some to include a low-cost variant of the iPhone 4, possibly with modified internals, alongside the release of the next-generation iPhone later this year. Most recently that's been pushed in a report from Reuters saying Apple would be launching an 8GB, low-cost iPhone 4 model aimed at emerging markets. Before that, a report from China-based Sohu.com suggested Apple is cooking up two models as part of a deal with China Telecom that would go live later this year. And going back just a bit further, Vietnamese site Tinhte--the same outlet that got ahold of the iPhone 4 ahead of its official announcement, posted photos of what it said is a new variant of the iPhone 4 featuring plastic body parts.
As of late there have also been a slew of "leaked" iPhone parts. An "engineering verification test" of an iPhone screen was posted earlier this week by Macpost, resembling existing iPhone 4 models. Days before, purported images of a frame for the low-cost model iPhone 4 popped up on Macrumors, sporting a slightly different antenna design. There have also been purported leaks of batteries, audio jacks, and screens being manufactured for the unannounced device.