9to5Mac points out that Walt Mossberg may have confirmed the release timeframe of the 3G iPhone, expected to be in June. In an online video (about 6:50 in), Mossberg casually but confidently says that the iPhone will be 3G in 60 days.

TGDaily claims (via IntoMobile.com) to have some new knowledge from “industry sources” about the upcoming 3G iPhone.

According to their sources, the 3G iPhone will indeed be introduced at Apple’s World Wide Developer’s Conference.

The iPhone SDK Beta 3 has barely been out for a few hours and Zibri, maker of the ZiPhone iPhone tool, has found references to a future 3G chip inside the new firmware. The chipset is the SGOLD3, which follows up the current S-GOLD2 in today’s iPhone. Here’s what the S-GOLD3 has support for, not all of which will make it into the next-gen iPhone: HSDPA category 8 (7.2 Mbps), cameras of up to 5-megapixels, MPEG4/H.263 hardware acceleration and “video telephony, streaming, recording and playback.” Again, Apple might not enable all these features in the actual 3G iPhone, but at least we know that they’re theoretically possible. [ZiPhone]

Careful observation of one of Apple’s presentation slides taken during last week’s iPhone SDK event reveals a possible firmware 2.0 feature; SPOTLIGHT!In one slide depicting the Contacts list, a small search icon appears at the very top of the screen. Could this be Spotlight for iPhone?