If it’s true, the 4GB iPhone is a bit of a surprise, since users need more storage space to accommodate many tempting apps for the iPhone. We are certainly expecting 32GB model right now (and we have had 8GB and 16GB for a long time), but 4GB?
Engadget reports that a source has told it that iPhones have been approved by the PCS Type Review Certification Board in capacities of 4GB, 8GB, 16GB, and 32GB. The 8GB and 16GB offerings are certainly no surprise, we have had those for a long time now. The 4GB is a bit of a surprise, that capacity went the way of the Dodo shortly after the original iPhone was launched.
The PCS Type Review Certification Board is the standards body responsible for certificating handsets with some carriers like AT&T.