Main market news.

It's already June! And you know what that means. This means Apple's (NASDAQ: AAPL) iPhone should be launched this month. According to latest sources, and confirmed by Apple's website, the launch date is June 29.

A two day Media and Telecommunications Conference hosted by Deutsche Bank is set to begin today. News Corp (NYSE: NWS) is scheduled to present this morning. Murdoch and the Bancroft family, which controls a majority of Dow Jones' (NYSE: DJ) voting rights, may meet to discuss Murdoch's bid to buy the company for $5 billion, or $60 per share. The family's concern is over editorial independence and Murdoch may be willing to accede on the matter.
Other companies will be presenting at the conference including Time Warner Inc.'s (NYSE: TWX) Warner Brother unit and Walt Disney Co. (NYSE: DIS).

A study into carmakers relationships with auto parts suppliers found that General Motors Corp.'s (NYSE: GM) relationship with its North American auto parts suppliers improved over the past year, while Ford Motor Co.'s (NYSE: F) relations worsened.

Pfizer Inc. (NYSE: PFE) is holding a meeting today at a medical conference in Chicago, where analysts and investors may be looking for an update on the company's pipeline and its operational turnaround. Some expect the company to have a significant presence at the American Society of Clinical Oncology's conference.

Analyst calls:
Motorola Inc. (NYSE: MOT) was upgraded by CIBC World Markets from Sector Perform to Sector Outperform. Motorola shares are up 0.8% in pre-market trading (8:31 a.m.).
Sirius Satellite Radio Inc. (NASDAQ: SIRI) was upgraded by Bear Stearns from Peer Perform to Peer Outperform. Sirius shares are up 2.1% in pre-market trading (8:33 a.m.).
Palm Inc. (NASDAQ: PALM) was also upgraded by Bear Stearns from Underperform to Peer Perform. Palm shares are up 10.3% in pre-market trading (8:40 a.m.).

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