Apple says Bob Mansfield is no longer on Apple's exec team but will remain at Apple working on special projects reporting to Cook. $AAPL— Poornima Gupta (@PoornimaGupta) July 29, 2013As head of the Technologies group, Mansfield led "all of Apple's wireless and semiconductor teams across the company," according to a cached version of Apple's Web site. It notes that Mansfield worked on some of Apple's "most challenging engineering projects," including the MacBook Air and the iMac line. With his departure from the exec team, Mansfield and special projects could mean Apple's next big product, presumably the iWatch. The timing on the iWatch is unclear. Some on Wall Street have pegged the device for later this year, others not until 2014. In a research report discussing last week's earnings, Morgan Stanley analyst Katy Huberty noted that the September quarter could provide the time frame. "Several signs suggest that new products will ship in the September quarter," Huberty wrote in her note, as she pointed out that Apple gave less transparency on gross margins, provided a wider-than-normal revenue range, and the continued talk about a busy fall. Huberty has previously noted the iWatch could be worth as much as $10 billion to $15 billion in annual revenue for Apple. On the most recent earnings call, Piper Jaffray's Gene Munster asked whether any of the new product categories Apple is entering could move the needle for Apple, but Cook declined to answer it. Munster has thrown out revenue numbers for the as yet-to-be-announced device. If Mansfield being shifted to work exclusively on special projects, could mean that the iWatch team could be ramping up its efforts to get the product out before 2014. Other technology companies are reportedly entering the smartwatch and wearable device market. Nike ( NKE) currently has its own watch, and Google ( GOOG), Microsoft ( MSFT), Samsung and others are developing their own. In the past, Cook has said "