Apple announced today that the iPhone 4 will be available in 17 more countries this Friday (July 30). Countries include: Australia, Austria, Belgium, Canada, Denmark, Finland, Hong Kong, Ireland, Italy, Luxembourg, Netherlands, Norway, New Zealand, Singapore, Spain, Sweden and Switzerland.

The device will be available through Apple’s retail and online stores and through authorized resellers. It’s currently available in France, Germany, Japan, the UK and the US.

Meanwhile, there might be a hiccup in the international expansion of Apple’s other big product launch of the year – the iPad.

Reuters quotes Kwon Young-soo, CEO of LG Display, a display supplier for the iPad (via Mashable):

"Demand (from Apple) keeps growing and we can’t meet it all. Apple may have to delay launches of the iPad for some countries due to tight component supplies and strong demand.

"We are considering increasing production lines for iPad products but overall supply is likely to remain tight until early next year."

On Friday, Apple announced a delay in the white version of the iPhone 4, while also launching its Case Program in which iPhone 4 owners can get free cases or bumpers.

Last week, the company also announced that it had sold 8.4 million iPhones and 3.27 million iPads in its third quarter.