Here are your Apple rumors and news items for Monday:

Perfect Pair: A fair amount of disagreement exists among analysts and reporters as to Apple’s (NASDAQ:AAPL) iPhone release plans in September. While there’s little doubt a new model is coming, will it be a smaller, cheaper device or will it be another high-end technology showcase like last year’s iPhone? Deutsche Bank analyst Chris Whitmore issued a note telling investors to expect both. Whitmore believes that given Nokia (NYSE:NOK) and Research in Motion’s (NASDAQ:RIMM) mutual declines this year, it makes perfect sense for Apple to release a device for “the midrange smartphone market (i.e. $300-$500 category).” He believes $349 will be the likely price for this model. Meanwhile, a coinciding high-end model will likely be named the iPhone 5, as it will be both the fifth-generation of the technology as well as in line with the branding of the company’s new mobile platform.

So Long, Samsung: Apple’s troubled relationship with Samsung is disintegrating faster than expected, according to a Monday report at Ars Technica. Samsung manufactures the A5, a custom processor used in Apple’s newest iPad, making that company an invaluable partner — even though Apple is suing it over patent infringements. The A5 will be replaced with the more advanced A6 processor in 2012, but this new report claims that Samsung will no longer manufacture the chip. Taiwan Semiconductor Manufacturing (NYSE:TSM) will be the one’s producing the A6 for Apple in 2012. DigiTimes reported in February that Taiwan Semi would likely be taking over production of Apple’s iPad and iPhone processors.

King of Australia: Research firm IDC said in a new report (via 9 to 5 Mac) that Apple now controls more than 30% of the Australian mobile phone market, and 40% of the smartphone market in the country. This is a significant jump from the first quarter of 2010, when the company controlled just under 19% of the Australian mobile market. The gains have come as much from the popularity of Apple’s devices as the decline in popularity of Nokia, which had controlled more than 44% of the mobile market as of the fourth quarter of 2010. By the end of the first quarter of 2011, that share had fallen to below 25%.

As of this writing, Anthony John Agnello did not own a position in any of the stocks named here. Follow him on Twitter at @ajohnagnello and become a fan of InvestorPlace on Facebook.