Topeka Capital Markets analyst, Brian White claims that Apple could be set for an “exciting” September, which could see the simultaneous release of the next-generation iPhone and a smaller iPad.

According to sources in the Taiwanese supply chain, Apple is likely to push up its release for the iPhone 5 one month to September. In contrast, the iPhone 4S hit the market in October last year, a late release compared to previous years.

White’s sources in the supply chain also expressed their belief that the new iPhone will have a Foxconn-built unibody casing, but downplayed rumors that Apple will use alloys developed by Liquidmetal Technologies in its upcoming smartphone. Liquidmetal-based products – which Apple has exclusive rights to use in consumer electronics – are expected to be tougher and more damage-resistant than the existing materials used in smartphones.

Leaked images purportedly from the upcoming iPhone 5 could corroborate the use of aluminum in the case. One such picture shows a predominantly aluminum back, with two strips of glass on the top and bottom. Judging from the images, the new Apple smartphone could be taller – suggesting a larger, possibly 4-inch screen – while the headphone jack will be relocated to the phone’s bottom.

According to White, Apple could also release a smaller version of its iconic iPad tablet in September. Recent rumors suggest that the Cupertino-based firm has been testing out a 7.85-inch iPad with a 1024 x 768-pixel resolution. Being the same resolution as the first two generations of the iPad, apps could run without much problem, while Apple can use the Retina branding due to its relatively high pixel density.