Apple is going to announce the financial results of its third fiscal quarter of 2009 in a conference call on Tuesday, July 21.

Apple's Mac, iPod and iPhone sales are also expected to be announced at the conference call.

Apple, which has scored 34.8 percent of gross margins in last two years, has updated its mobile operating system and introduced the iPhone 3Gs.

However, earlier in April, Apple made analysts to hope results no-better-than 33 percent for third quarter and 30 percent for the fourth quarter.

Muller, an analyst expects Apple to report earnings of $1.35 a share on revenue of $8.3 billion, beating Wall Street expectations i. e. $1.16 a share on revenue of $8.16 billion.

Well, these are only expectations. The whole picture would become clear on Tuesday with company's announcement of financial results.